A Root to Cure Evils (Ginseng)

A police informant reported a horde of vegetable roots drying in the sun outside a home in Randolph County, WV. This is not the kind of news that makes headlines or pricks up ears, but to our friend, a law enforcement officer at the Department of Natural Resources, it was a vital piece of intelligence. That was in the 1980s, soon after the West Virginia Legislature passed a law banning the harvest of wild ginseng except between September and November by permit or with the landowner’s agreement. The officer flew a helicopter to spy with binoculars over the backyard of the suspect’s home. Sure enough, there was a golden heap of uncertified roots and rhizomes two months ahead of the “seng” season. The ginseng buyer busted, he had his booty confiscated and was charged with a heavy fine, but the sengers (poachers) who dug in the forest laid low.

If you watch Appalachian Outlaws (The History Channel, 2014) you might imagine our forest tracks blink with red and blue lights and the mountains echo to sirens and gunfire. In the first episode of the series (all I had patience for between incessant ads), a poor mountain man, Greg Shook, heads out of Georgia for the moist, rich soils on the north sides of West Virginia’s mountains where he heard there is plenty of seng. He evades landowners in private woods and stalks federal lands, stumbling into an illegal grove of cannabis where he narrowly avoids getting shot. With luck, he will dig enough seng to sell to kingpin Tony Coffman or the incomer Corby “The General” Patton. If the story convinces you that outlaw sengers lead thrilling lives fleeing from threat to peril, you will be disappointed to hear from our friend who told me it is a gross perversion of reality, even by the low standards of reality TV.

Hampshire Gazette, 1787. Historic Deerfield Library

Hampshire Gazette, 1787. Historic Deerfield Library

Seng has been harvested from American forests since colonial days, and for time immemorial by native tribes. It supported a thriving export industry to China in the 19th century, and still supplements local incomes. Since Asian ginseng became virtually extinct in the wild, the variety growing along the Appalachian chain is now heavily picked. In our county alone (Pocahontas) 259 lb was declared last year (2015) out of 8,103 lb throughout the state. The average price that year was $410 per lb, and in some years it rises above $700.

No wonder our neighbors keep secret the whereabouts of ginseng. It crouches low on the woodland floor with four or five of five “prongs” reminiscent of beech leaves, and now, in the midst of seng season, a small bunch of red berries catch the eye at the center of the rosette. When sengers dig up swollen rhizomes and filamentous roots they discard the green top and bury the berries under leaf litter to generate new plants. But they never come back the next year because ginseng takes a long time to mature, and harvesting plants under five years old is illegal. I know of no other small woodland plant that is longer-lived: those evading the senger can outlive him, and their longevity is not much less than some trees. As a general rule of nature, plants or animals that grow slowly, mature late and age gradually are not very productive—they don’t need to produce seeds quickly or abundantly to sow posterity because time is on their side. Their strategy worked well until human harvesters came along and stripped entire slopes of these precious vegetables.

Ginseng’s reputation for promoting human longevity, endurance and sexual potency started in China, like so many other ancient notions and philosophies. But does it hold up in an age of science? Hard evidence is hard to find, although there are over 7,000 research/ review articles listed in PubMed. Admittedly, most papers are published in obscure journals based on animal studies or in vitro experiments, and the rare clinical trials of any worth struggle to raise ginseng out of the basket of “alternative therapies” to the shelves of conventional medicine. Like research on other “botanicals,” there is too little attention to batch variation and potential toxicity.

Most serious scientific attention on this plant is focused on saponins (“ginsengosides”), complex, steroid-like molecules which are so-called because shaken in water they make froth. The anti-oxidant, anti-inflammatory and immunostimulatory activity found under lab conditions suggest that ginseng might render some beneficial effects on our physiology and pathology after eating it fresh or steamed, and at the very least I expect it blesses the hearts that believe in it. Its very name has a healthy glow, even at the end of a “ginseng cigarette” (though healthy cigarettes sound like an oxymoron and may not contain the said herbal).

Ginseng. Courtesy C.C. Flinn

Ginseng. Courtesy C.C. Flinn

It takes its name from Schinseng, meaning in Chinese “essence of the earth in the form of man.” If you stretch your imagination, the baggy rhizomes look somewhat like the body and legs of a man. Many old cultures have interpreted in nature divine signs created for our good, like red centaury (for purifying the blood), toothwort (looking like a tooth for toothache), and so on. Dr. Paracelsus popularized these beliefs handed down from Galen, and they persist as folk remedies and in alternative medicine. All I can say after quickly reviewing the science is that ginseng probably does no harm, which is the elementary ethic of healthcare (primum non nocere), but as for doing good and extending our lifespan, the jury is out.

I saw an old man climbing our slopes towards a plateau on Middle Mountain carrying a trowel and a knapsack under his arm. As he bent to dig in the soil, his shaggy, grey beard flowed over the collar of a heavy green coat which had a hole under an arm. I stood watching, wondering.

There are three categories of needs and wants in our lives. First and foremost is the need for something to love, which should be free, and I pondered whether the old man’s love was for our woods and mountains where he roamed as a boy. The second is our need for water and healthy food, which should always be available and affordable, and I guessed from his appearance that he was poor, if not starving. Last and of least importance is our want for luxuries, which are more expensive than the rest but unneeded, and I mused that the forest-gatherer hoped to make a little profit to bring some joy home, perhaps for a nip of whiskey before bedtime or a cheap gift for his family. I could have challenged him because he was trespassing in our woods when the season for ginseng was out, but instead I waved.

 

 

 

 

 

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Who’s see a Thylacine?

Only Aussies born more than 90 years ago can make a plausible claim to have seen a living thylacine: according to official records, the last of them died in Hobart Zoo in 1936. And, yet, thylacines still live! Few “extinct” animals cling so doggedly to public consciousness or attain cult status as the so-called Tasmanian tiger/wolf.

Thylacines feature on the Tasmanian coat of arms where two of them support a shield depicting their favorite prey (a sheep). They have been adopted by a pop group and are emblems on car registration plates. They are cartoon characters in children’s stories. They are mascots of the Tassie cricket team. They have a huge following on Facebook, and are pursued by a Tasmanian research team which is struggling to verify sightings of these shy animals. They are regularly seen or captured as fuzzy images looking like yellow labs darting into cover after the sun has gone down and cocktail hour is over. And where else, apart from Australia, would a government choose to humor motorists by erecting signs warning about extinct animals crossing the road?

Watch out for thylacines

Watch out for thylacines

I doubt thylacines would be so beloved today if they were not hated yesterday. Perhaps we feel guilty for having pushed a species over when it was already on the brink of extinction. A bounty of ₤1 per head was offered on behalf of 19th century farmers when thylacines were already rare. But who should blame a predator for supplementing its diet with mutton when hunters were thinning out its natural prey?  They also attracted attention for having the stripes of a tiger, the gape of a wolf, and the habits of a hyena. And they had cachet as genuine Australian natives with pouches like other marsupials, but unlike other species they were worn by both sexes, which is a rare example of political correctness among Aussie males.

Why else would thylacines attract attention? Every continent except Antarctica is inhabited by at least one cryptid species. There is the Sasquatch (Bigfoot) in North America, Mapinguari in South America, Yeren in China, Yowie in the Australian Outback, etc. As we tame the shrinking tracts of wilderness and clear jungles for our own wants, we are still wont to preserve some mysteries passed down by tradition and from folklore. We aspire to all knowledge of the universe and strive for all control of our environment, yet still harbor a love of mystery and curiosity about the unknown, for a world in which everything is known would indeed be dull. Ape-like critters on two feet fit the bill, and for the merest shard of plausibility they require a large territory for cryptids to hide in. But a small, highly-populated island like Britain does not have enough cover for them so they must keep their heads discreetly under water in Loch Ness. As for Tasmania, it still preserves old forestland, enough to conceal a critter the size of a dog, providing it never prowls after daybreak.

Thylacine-a portrait

Thylacine-a portrait

Thylacine hunting is a serious endeavor and a mighty passion for its followers. It stirs emotions like watching for ghosts or stalking for Bigfoot, but these animals are in a class of their own because they were never phantoms. More than a fading memory, evidence of their existence stands on all fours in museums today, and they may even hold out in tiny numbers. If Bactrian deer can come back from “extinction” in the wilds of Afghanistan, why not thylacines in Tasmania’s quiet forests or somewhere else?

Australia was originally part of a continental land mass combined with the huge island of New Guinea. The fauna and flora could come and go within the same ecozone, where they evolved differently to animals in mainland Asia north of the “Wallace Line.” New Guinea preserves descendants of a common marsupial stock, including some kinds of kangaroo that adapted to a life in trees. Perhaps thylacines still survive in its tropical forests. On my first trip to West Papua nearly twenty years ago, the western half of the island colonized by Indonesia and then called Irian Jaya, I met a man who was the provincial medical director and a keen naturalist. His brother in the Merauke area had recently seen in good light a critter looking like a thylacine. I didn’t know until recently that around the same time missionaries reported sightings by tribesmen in the Puncak Jaya region, although they had no idea it was a sensational claim. May the mystery endure, and thylacines hiding in the woods keep their heads down.

Next Post: A root to cure all

 

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Who’s Afraid of Artificial Gametes (Eggs and Sperm)?

In the dystopic Brave New World of Aldous Huxley, he did not add artificial gametes to the bevy of reproductive technologies for replacing natural fertility in his future World State. Nevertheless, they might find a place one day for helping people build their families. I get stares when I ask what others think about artificial eggs and sperm. Perhaps they darkly imagine “Frankensperm” as DNA packages propelled by miniature motors, or “Frankeneggs” with DNA coiled around a silicon chip with a door to admit sperm. But biologists are not that creative!

The technology I have in mind, and which I addressed this week at a meeting in Israel, will only be judged successful if engineered gametes are biologically indistinguishable from “wild types” in normal ovaries and testes. This prospect may seem an odd subject to post from here (pictured), but it will never be a lasting controversy compared to the likes of theology and politics.

City of Jerusalem

Jerusalem by Berthold Werner (Own work) [Public domain], via Wikimedia Commons

Artificial gametes are a huge step towards the total conquest of infertility. They will bypass the deficiency of eggs and sperm in people unlucky to be born sterile, or rendered sterile by surgery and cancer drugs, and many others who are sterilized by age and an early menopause. The first revolutionary treatment for infertility (IVF) was received with a mixture of joy by childless couples and horror by people believing it would harm children and be an affront to “human dignity.” The record has been very positive for millions of IVF babies, and the harshest critics of IVF have mellowed. For who can be so hard to say a child should never have been born?

I suspect after a bumpy ride through sensationalist headlines, artificial gametes will follow a similar course, and possibly help to damp down the demographic anxiety now sweeping the globe. Back in the 1960s, there was a panic about spiraling population growth (The Population Bomb by Paul Ehrlich), but, although our numbers are still climbing from the momentum of high fertility in recent past, fertility rates are declining almost everywhere. Women have fewer babies and start their families later or not at all. Conception is more a matter of choice than chance, and smaller family sizes are desirable because raising children is expensive.

Such private decisions have public consequences, and nervous governments are encouraging parenthood again. Some countries offer free childcare and longer maternity leave. China has relaxed its one-child policy. Japan is in the vanguard of the demographic implosion, but not alone in having a birth rate below replacement levels. And in all but one Western country polled by The Economist (August 27, 2016), the expected average family size was lower than people aspired to as ideal. This reversal of attitudes to family building encourages services almost everywhere for folk who are involuntarily childless. There are now over 1,000 fertility clinics in India, a country long depicted as the epitome of overpopulation. If depopulation of young, working age people continues, surely we will see even more sympathy for these folks, and a greater welcome for the next revolution in fertility treatment than for the first.

Creation of gametes for those who have none would be such a revolution, and would surely bring joy to those who have no rosy options. At present, they may adopt a child or opt for gamete or embryo donation, but neither is an automatic entitlement and comes with financial and social obstacles. Moreover, the desire to have a genetically-related child is compelling because it is biologically grounded. But creating gametes de novo from patients’ own somatic cells is not a light undertaking as it is a turning back to a competence that was lost hundreds of millions of years ago in our evolutionary history.

The chief difficulty is that eggs and sperm are the end-products of slow, complicated processes that first started in our days as embryonic balls of cells. The germ cell lineage that leads to a mature gamete starts with a special type of cell which is “pluripotential,” meaning it is the stem of every cell in the body—brain, bone, blood and so on. It is like a joker in a card game, because it is not a member of a suit but can join any of them. But once a germ cell sets off on its journey of development it doesn’t look back—it loses the pluripotency of its parent cell and can’t switch to another “suit.” Neither can a nerve cell or red blood cell become a germ cell after they have differentiated. At least, they couldn’t until discovery of the trick of injecting nuclei into egg cells, which have “juices” for turning DNA back into thinking it is pluripotent again. That was the amazing lesson Dolly taught us.

When we engineer somatic cells (say, skin cells) to make clones or artificial gametes, both have reversed developmental time to the pluripotent state, but the goals are entirely different. The purpose of reproductive cloning is to duplicate individuals with genomes that are identical to the parent cell. On the other hand, making artificial gametes requires the parent cell to undergo a reduction division for halving its DNA so that it has a genome complementary to a gamete of the opposite sex with which the full chromosome complement is restored at fertilization. And before that division occurs the cell must go through a process of genetic recombination to generate daughter cells with different combinations of genes. Generating diversity is the game of normal reproduction, while uniformity is the hallmark of cloning. Artificial gametes are welcome in theory, but clones are scary.

Although it is very difficult to reverse a somatic cell into pluripotency and then drive it forward make a gamete (among the most specialized cells), two routes are open, although one is guarded by a traffic stop light.

The first involves injecting a nucleus from one of the patient’s somatic cells (e.g., skin) into an egg, which divides to create a ball of cloned cells looking very much like an embryo. It has to be killed, however, if the pluripotent stem cells are to be extracted for making germ cells and, hence, gametes. The moral uncertainty of these embryonic entities and debate about their rights to protection as “human” may never be resolved, thus I believe embryo stem cells are a route to nowhere.

The more attractive candidates by far are the famous iPS cells (induced pluripotent stem cells). They earned the head of a Kyoto University lab the 2012 Nobel Prize for Physiology and Medicine because iPS cells can be made from almost every type of cell in our body, and they are equally pluripotent as embryo stem cells.

In a nutshell, their story is that when a somatic cell is infused with special bunch of molecular transcription factors that are involved in the ground state of pluripotency, its nucleus will “think” it’s inside an embryo stem cell. Once an iPS cell is created it multiplies over and over to make millions of copies, and these daughter cells can be induced to differentiate outside the body along the developmental pathways of all other cell types in the body, including germ cells. The original molecular cocktail was only four factors, but two of them have oncogenic capacity. Oops! Shakespeare would mutter, The course of true science never did run smooth! Researchers are busy replacing them with less threatening ones, and the prospects are good. But there is another challenge for safeguarding health.

When differentiated cells are turned back to become pluripotent they express a different set of genes, which are said to be “epigenetically” controlled. The switches for gene activity lie in the cloud of proteins and methyl groups surrounding the DNA molecule, but what happens if this reprogramming process is incomplete? Is this why iPS cell development is inefficient and can go awry? Almost certainly it is. More to the point of this post, some iPS cells can’t make germ cells, although there is proof of principle.

Another lab at Kyoto University generated gametes from iPS cells made from fibroblast cells. When they were fertilized in vitro with gametes from healthy animals the embryos were transferred to surrogate mother mice which delivered healthy pups. This gold standard for proof is, however, a very long way from a technology for helping patients to conceive with their own gametes, but it does signal the path of progress, just as pioneering IVF studies with mice in the 1960s laid the groundwork for the first revolution in fertility treatment two decades later. It may take that long to bring iPS cells to clinical practice, as the Japanese scientists warn. There are not only technical hurdles to cross, but potential hazards to negotiate, the known and the known unknown.

And yet, there is already some progress towards making sperm from human iPS cells. Once a male germ cell has reached the stage of halving its chromosome number (to haploid), it is potentially ready for fertilization, which can be accomplished by the sperm injection technique (ICSI) before it becomes a motile cell. It is easier to make a sperm than an egg possessing a complex and voluminous cytoplasm, so the problem of equity between the sexes even exists at the cellular level.

A sensational technology that can revolutionize reproductive care is bound to attract huge publicity and suffer from the temptation of a few to push it ahead of biological understanding. The rewards in science go to the first at the finish line. A few years after Dolly was born, the Raëlian cult claimed to have cloned a human baby called Eve which, of course, was never confirmed. No doubt we will hear more stories of reproductive technology gone feral that were first inspired by Huxley. Such stories create anxieties that can arrest progress, and without the resolute pioneers of IVF technology the fertility treatments we now take for granted would have been delayed. Perhaps there are more justifiable concerns about artificial gametes than I have mentioned. Perhaps they will open the door to germline therapy, which is widely feared. And perhaps Huxley was prescient in anticipating human cloning and growing babies in bottles by the “Bokanovsky process!” To put those alarming thoughts to rest and sleep peacefully at night, I put my faith in future generations to make good decisions that we have no need of making as yet.

 

 

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An Axolotl with a Tale for Regenerative Medicine

Who would imagine that a salamander could offer clues for regenerating human limbs after amputation in an accident and on the battlefield, or even show how to thwart human cancer?

Mexican axolotl

Axolotl by th1098 (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)%5D, via Wikimedia Commons

Axolotls are the kind of weird creature you might expect Alice to find in Wonderland. The first one I knew was an albino called Axel. It was a pet in an Edinburgh University aquarium belonging to a colleague who was an expert on the brains of octopuses (not octopi!). Although that was many years ago, I still remember how at the end of day he would wander into my office unannounced and bearing a plate of fried octopus legs leftover from his latest experiment. It was hard to look other octopuses in the eye when I visited his lab, so I hurried over to say hello to Axel, who always had a faint smile of Buddha-like intelligence curved over his chin.

Adult axolotls grow a foot long from nose to tail. They look like giant tadpoles still sprouting the same gills they acquired in youth, like bunches of ornaments growing out of their necks for breathing in water. Once met, they are never forgotten, except perhaps when you have to spell their name, which the poet David McCord made fun of in nonsense verse. Ozelotl. Axelbottl. Ottalottal.

Biologists call them neotenous because they become sexually mature without ever undergoing metamorphosis like other amphibians. It is very rare in animals, but Axel was rarer still because he was a perversion of his kind. He was a fully-actualized axolotl, which greatly added to my fascination.

Instead of breathing through gills like a fish, Axel sucked air into his lungs like a frog, and like us. And, thus, he was no longer confined to life underwater and could climb out onto rocks to warm in the “sunshine” of a lamp under the aquarium roof. He looked like a living fossil, a relic of the first land animals in the Devonian Period.

Axel was no mutant, only the subject of a scientist’s curiosity. He arrived in the lab looking like others of his tribe, but my colleague gave him a shot of thyroid hormone which dramatically replaced his gills with a pair of lungs. It is an evolutionary enigma why axolotls don’t undergo normal metamorphosis in the wild, unless it was an adaptation to a low iodide diet in Mexican mountain lakes. Flicking the metamorphic switch with a hormone is, however, the least amazing fact of their biology. The best trick up their sleeve is regenerating a perfect limb or tail after one is amputated. They can even repair a damaged spinal cord, and the renewed organs seem biologically younger than the rest of the body. Such facts deserve serious research attention.

Lost a fingertip? Call an axolotl.

Lost a fingertip? Call an axolotl.

If my leg is cut off at the knee I don’t expect the stump to regrow bones, muscle and skin so I can walk unaided again. The ability to regenerate organs and tissues was almost completely lost long before our kind evolved. I say almost because skin wounds in human fetuses early in pregnancy are perfectly repaired without scars, and a child who loses the tip of her finger may see it regrow if some of the nail bed remains, with help from local stem cells and nerves. Of course, our deep skin wounds can be repaired after birth, albeit with scarring, but even this capacity weakens with age.

Axolotls have none of our limitations. When one of their limbs is amputated, fibroblast cells in local connective tissues turn back to a more primitive and potent stage. These stem cells multiply to create a bulge or “blastema,” the foundation of a limb bud that forms a fully-functional limb with digits. How come?

The mechanism that was active at embryonic stages for instructing cells to make a limb is switched on again. Early in the process, a family of proteins called “Wnts” activate “Frizzled” receptors which pass on the signal to “Disheveled” proteins inside cells for changing their behavior. The growth factor families FGF and TGF-beta telegraph between cells to mold the changes. I won’t test your patience with cell biology any further, except to say the most important takeaway message is that all these players still exist in humans. If only we could get our hands on the molecular levers!

As usual in science, there are more questions than answers. Two that I find particularly intriguing are why axolotls are resistant to cancer and how they avoid creating tumors when they are regenerating tissues? It seems paradoxical because we expect vigorous cell growth in response to embryonic-like signals would make them more vulnerable to runaway cell proliferation. The signals are remarkably similar in embryonic and cancer cells, and injury that repeatedly stimulates cell proliferation raises our cancer risk. There is also the related puzzle that chemicals known to trigger tumor formation in humans don’t affect axolotls—except occasionally to cause an ectopic limb to form at the site of injection. We might envy their tolerance of chemical hazards, but not at the price of generating a superfluous limb or tail!

When the tale of the axolotl is unraveled there will be lessons for regenerative medicine and repelling cancer—although I wonder what trade-offs will have to be navigated if we try to tinker with ancient, tightly-regulated cell signals. But at least we can answer whether Axel had lost the privileges of regeneration after he metamorphosed. It is reasonable to guess that regeneration is tied to the “embryonic” stage that normal axolotls remain in throughout life, and, moreover, that it can never be recovered in humans after birth. But Axel never lost that power, and although the mystery deepens the fact may timidly hold hope for us.

Next Post: Artificial Gametes

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National Dog Day

“Every dog has its day” was coined before Shakespeare, but centuries passed until dogs were given their Day. Not until 2004, and a dozen years after National Corndog Day, were they given a deserved honor, and National Dog Day came around again today.

"Lilah" by the author's cousin Jo Bemis

“Lilah” by the author’s cousin Jo Bemis

There are lots of reasons to be grateful for man’s best friend, whether it is a pedigree pooch or mushy mutt. This is my tribute to our duo, Lilah and Ben. Most human allegiances tend to be binary— we are for the political left or the right/ for globalization or against it / like Marmite or loathe it, and my loyalty is with single heart and mind to the canine tribe. Do I hear exasperated meowing?

So familiar is joyful barking and tail-wagging when we come home that it is easy to forget to be astonished that we give dogs not only safe harbor and a free rein in our homes but an intimate place in the lives of our family. They originated not so many thousands of years ago from a common ancestor with the wild wolf. In a previous post, I likened that genome to a Swiss Army knife because it had the potential for molding by selective breeding to create the huge range of body types and temperaments in modern dogs. It was not only their intelligence that made them attractive for domestication, because there are smarter animals, but no other beast is as willing to please or matched in loyalty and companionship.  Perhaps most remarkable of all is their “preadaptation” for a long list of services they render us: therapy dogs, sheep dogs, rescue dogs, guide dogs, guard dogs, drug/ bomb sniffing dogs, racing dogs, hunting dogs and circus dogs. It is even claimed their superior sense of hearing and smell can give us early warnings of earthquakes, diabetes and cancer. Canine science is currently resurgent to understand these innate talents.

When did this mutual affection between species grow to the proportions we enjoy today? Starting as casual camp followers, dogs evolved to be our “best friends,” sharing our food, fireside and, dare I say, bed!

Before the 19th century, there were plenty of street dogs, and our fear of rabies gave them a wide berth. Pet animals were mostly regarded as the frivolous lapdogs and playthings of aristocratic homes. Lady Isabella Wentworth wrote: “Fubs is a mighty favourite, at first my niece was afraid of her jumping upon her, but Fubs is so subtle as to fawn upon her, and kiss her, and comes gently to her …” (Twickenham, April 2, 1705). A century later, Lord Byron eulogized his dead dog, Boatswain, in a poem which, although possibly satirical, reads heart-felt:Byron

Industrialization of Victorian Britain probably contributed to an earlier warming of relations between man and dog than in other countries. Prosperity and cities were growing, familiarity with rough farm dogs was a shrinking memory, and “dangerous” wild animals were extirpated from the countryside long ago. It was okay to be sentimental about pets that were obedient and courageous guardians of the home, and everyone loved stories of canine heroism. Queen Victoria and Prince Albert started a royal tradition of keeping dogs, which became a fashion that trickled down to every social class. The celebrated painter Edwin Landseer created a portrait of the Queen sitting with her favorite dogs, and was commissioned by upper crust families who wanted to immortalize their own. The arrival of photography in mid-century offered an affordable image for other people, and the family dog often featured on the front of penny postcards for mailing.

Our Ben & Lila - chums

Our Ben & Lila – chums

The same was happening in American towns and cities, causing Mark Twain to quip, “The more I learn about people, the more I like my dog.”

Our sensibilities to animal cruelty grew with proximity to animals as we recognized and sympathized with their experiences of pain. Humane societies were launched, and the Battersea Dog & Cat Home in London rescued strays from vivisectors and dognappers who ransomed them back to their owners. As the poets Elizabeth Barrett and Robert Browning were secretly preparing to marry in September of 1846 her spaniel Flush was stolen a third time, and the couple had to pay six guineas to recover the pet from seedy characters in Whitechapel. Valuable breeds of dogs are still targets for thieves. (Philip Howell: At Home and Astray: The Domestic Dog in Victorian Britain).

A surging demand for animals bred to type created the ancestors of today’s pedigrees and professional breeders and, sad to say, puppy mills. Local and national dog shows soon followed, the first in Newcastle in 1859. The Westminster Kennel Club Dog Show in New York City was inaugurated in 1877 where, like Cruft’s Dog Show in London, dogs are judged by breed standards and an overall champion is chosen annually. Promoted from the cur on the street, dogs’ days have gotten better and better and for many of us our home is incomplete without this furry friend. Some dogs are considered elite, a few have become TV celebrities while others are fashion accessories for the masses, though all of them are too innocent for conceit.

There is so much to celebrate about these animals that I have not yet reached the bottom of my list, but before closing I must mention one last virtue. After years of mutual affection and intimacy between owner and dog, the passing of one leaves whichever survivor as a chief mourner.

Old Shepherd's Chief Mourner by Landseer (1837). V & A, London [public domain]

Old Shepherd’s Chief Mourner by Landseer (1837). V & A, London [public domain]

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