Chimps Head for Retirement

In 1871, the now-extinct Hornet magazine published a cartoon of Charles Darwin looking like a human-ape chimera. It was not meant kindly.

Charles Darwin

The Hornet Magazine

We might suppose that progressive Victorian thinkers would have embraced chimps, gorillas, orangs, etc. as newly-found cousins. Perhaps some did, but lonely captivity in bare “prisons,” laboratory experimentation, and hunting continued.

It takes a long time for ingrained attitudes about the “beasts” to change, even when evidence mounts about their cognition and suffering. It’s ironic that medical research which adopted apes for human ends has raised appreciation of them as sentient beings that insists on a higher ethical standard of care not much different to what we demand for ourselves. Jane Goodall, the foremost chimpanzee expert and advocate, urges, “Surely we should treat them with the same consideration and kindness as we show to other humans; and as we recognize human rights, so too should we recognize the rights of the great apes?”

There was a recent instance of how attitudes are changing when the head of the NIH announced that the last 50 chimpanzees in federal laboratories will be retired to a sanctuary for the rest of their lives. The published reasons for freeing the chimps was utilitarian and couched in unemotional waffle (“the need for research has essentially shrunk to zero”), but I’m sure that public opinion influenced the policy. Pictures of apes in cages, separated from their babies, and communicating with people in sign language open our hearts to them as we see more of us in them and vice versa. We are unashamedly sentimental about our pets, and why not for our simian cousins too? This might sound surprising coming from a writer who sometimes used animals in research (never primates), but it’s not shameful to admit a change of heart. The treatment of animals as only subjects of curiosity, cuisine and companionship can evolve to something greater, although I can’t say how far the ineffable feelings can go.

The reason why animals, even apes, never deserved the protection of legal rights was, of course, because they are not human. They don’t have a brain and moral law that in our own estimation justified us as their emperors. The difference between Us and Them is that we regard ourselves as a benevolent species, for that’s what humane means. What a shocking self-deceit!

Most Victorians, irrespective of whether they believed the Creation Story or Evolutionary Theory, thought our species was destined to rule the Earth. The Darwinian revelation that we are a Johnny-come-lately species didn’t puncture that mental outlook, and modern ecology has struggled to fix a truer and more sustainable perspective against the resistance of economic and political forces. The justification for using and abusing animals was the same as that for the mistreatment and malice of other ethnicities of our own species—they were all dehumanized.  Lately, I have been musing when the divorce with nature began.

A new breed of eco-theologians, including the late Thomas Berry, admit that the three great monotheistic religions unconsciously helped to vindicate brutal treatment of animals and careless stewardship of the environment. When people lived much closer to the land as a source of production, there could be greater feelings of unity with the rest of creation, and less hubris exploiting its “goods.” The natural world was a divine revelation that preceded the Scriptures. Still today, some native religions teach that the land and its inhabitants, plant and animal, are sacred, and the sacrifice of an animal taken in a hunt was a sacramental act for some North American Indians.

If I try to pinpoint a time and place in history when Western attitudes changed I choose Medieval Europe. As a devotee of Aristotle, Thomas Aquinas taught that humans stand at the apex of nature’s hierarchy, owing no special moral responsibility to animals, which are only instruments for our use. When the Black Death arrived a hundred years later, killing a third to a half of the population, the church tried to soften the horror of temporal existence and the hard Augustinian doctrine of a broken world by focusing the minds of the faithful on the permanent reward of peace in heaven. With eyes fixed on such a great hope why should anyone bother about the Earth and its creatures? Wasn’t the great lover of creation, Francis of Assisi, just a sentimental monk?

Although the tide of faith started ebbing in the Enlightenment, attitudes towards nature and animal life remained harsh. The wild woods, mountains, and oceans, and the creatures they harbored were dangerous, not precious gifts. Beauty and its ally, security, lay in the towns and cities, and urbanization increased the drift from old feelings of communion with nature. Materialism and its goods had arrived. Pressed to choose a historical figure to represent the changing secular attitudes it’s hard to beat Descartes. He drew a metaphysical gulf between Mind and Matter. Since animals were assumed not to have a mind or self-consciousness (now repudiated), they were regarded as biological machines, mere matter not calling for special care.

The promotion of a bunch of chimps to a gentler life as senior citizens is a tiny example of how public sensibilities have evolved, although there is a long way to go before deep-seated religious and secular assumptions are replaced with more open and enlightened feelings that can bring us closer to our spiritual Earth home. We can expect to see more controversy and struggles over our management of animals—for food production, sporting entertainment, medical research—and I have no idea where they will end. But a quotation from Henry Beston holds a guiding light for me. He was a friend of Rachel Carson and like another temporary hermit in Massachusetts, Henry David Thoreau, he spent a solitary year in a cabin, but beside the ocean instead of a pond. He wrote in The Outermost House:

We need another and a wiser and perhaps more mystical concept of animals. Remote from universal nature, and living by complicated artifice, man in civilization surveys the creature through the glass of his knowledge and sees thereby a feather magnified and the whole image in distortion. We patronize them for their incompleteness, for the tragic fate of having taken form so far below ourselves. And therein we err, and greatly err. For the animal world shall not be measured by man. In a world older and more complete than ours they move finished and complete, gifted with senses we have lost or never attained, living by voices we shall never hear. They are not brethren, they are not underlings; they are other nations, caught with ourselves in the net of life and time, fellow prisoners of the splendor and travail of   the earth.

I guess old Darwin would have shared those feelings and welcomed the belated rediscovery we are making of caring for our real home, this shrinking world with its creatures whose destiny is more completely in our hands than ever. He might have enjoyed seeing his caricature in magazines, believed there was dignity in a hairy pelt, and reflected on Francis’s dream of an Earth family—Mother Earth, Brother Wind and Air, Sister Water, Brother Donkey, Brother Chimp, Brother Darwin.

Next Post: Sperm reveal Human Chimera

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Glycerinate Fall Leaves

Here’s a cheapskate suggestion for decorating the table at Thanksgiving or giving at Christmas to people who have everything. Fall leaves!

While other families in the neighborhood are filling bags with leaves from their yard for collectors to cart away to the dump, I am spreading them evenly into the flower beds to save the cost of mulch, but I bring the most colorful and perfect specimens indoors.  Southern red oak, tulip poplar, dogwood, beech, and sweet gum—all changing through a spectrum of bright colors, and each keeping to its peculiar schedule.

Wouldn’t they look great in a bowl on the festive table if it was possible to stop them curling, cracking, and crumbling? It is, in the twinkling of an eye.

  • Dilute a bottle of glycerin (glycerol) from the pharmacy with tap water in the ratio 1:2
  • Pour the fluid into a tray for soaking the leaves
  • Flatten the leaves with a weight (like a matching tray)
  • Allow them to soak for a week or so
  • Pour off the fluid and dry the leaves on paper towels
  • Voila!Glycerinated fall leaves-small

The glycerin helps to preserve the leaves, and makes them supple. They should last until springtime when delicate, lime-green beech leaves attached to their branches can be gathered for glycerin treatment. That makes a cheerful decoration for the fireplace when it becomes vacant after the winter, and is a recipe I learned from a country gardener. Mum’s the word.

Next Post:Chimps Head into Retirement

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Inferno in Indonesia

Indonesian forests are burning. It happens annually, but this time the inferno is far worse. On some days, the fires evolve more carbon into the atmosphere than the whole of America (whose economy is 20 times larger), and the smog and haze have spread beyond neighboring countries to Thailand and the Philippines. Yet, as George Monbiot the environment correspondent for The Guardian newspaper points out, this catastrophe gets scant attention in the media, and is a long way below pronouncements by Donald Trump and European debates about standards for sausages.

As peat dries out in forest swamps drained in the Suharto era, it catches alight easily and smolders underground, even for years. That incendiary program, combined with clear-felling for logging, slash and burn farming, and palm oil plantations, is sending to extinction some of the richest habitats in the world where orangutans, gibbons, sun bears, pangolins, and other endangered species dwell.

When Alfred Russell Wallace visited in what was then Dutch New Guinea in 1862, he thought the astounding biodiversity was safe forever: Nature seems to have taken every precaution that these her choicest treasures may not lose value by being too easily obtained in the roughest terrain (The Malay Archipelago). A century later I remember hearing in our geography class that the jungles of Indonesia and Brazil are so tenacious that we can never degrade them. Those pages in my school notebook should be tossed in the fire.

The fires are especially aggressive this year because of the El Niño effect. As Pacific currents change periodically there is a see-saw impact on rainfall—less in normally humid Southeast Asia and more for parched California this winter.

The last strong El Niño in 1997 helped farmers in California to produce bumper crops. I was visiting Indonesia. From my seat in a Garuda flight from Java to Irian Jaya, I wrote in my journal before landing at Sentani:

When I woke at dawn we were flying through canyons of pink and grey clouds, and I will never forget the first thrilling sight of the coastline. This was a land from which travelers brought home tall tales of head-hunters, gigantic crocodiles and belligerent cassowaries. I pressed my forehead to the window to scan the terrain. The mountain summits were hidden under white bouffant hairdos from which long green saris of tropical forest trailed to the lowlands. As we descended, I could see brown rivers tumbling down steep gradients and over waterfalls before transforming into snakes weaving through coastal swamps to die in the Pacific Ocean. The largest was the Mamberamo River basin, which drains one of the last unexplored tracts of rainforest on earth, where new species of birds-of-paradise, frogs, butterflies and palms have been discovered…

The whole archipelago of Indonesia looked like a jewel from the air, and I anticipated a paradise on earth. The coastal plain was still lush, but when I reached the Highlands they were dry, the staple crop of sweet potato had failed, and people were dying of famine. Observing an ancient superstition in times of drought, they had lighted smoky fires to make clouds for bringing rain.

But they never sparked any great conflagration because they understood their environment, and the print of their bare feet on the earth had always been light.  It took the years of commercial and often illegal forest clearing to create conditions for infernos in Irian (now called West Papua), as in Borneo (Kalimantan) and Sumatra.

Irian Jaya, West Papua, Indonesia

Papuan friends in the Highlands. Hungry but not scorched in 1997

A change from authoritarian to democratic rule in the past two decades hasn’t stopped the burning or the burners, and responsible stewardship of a wonderful archipelago seems beyond the reach of a feeble government and the new president, who graduated in forestry science. A better prospect for rooting out corruption and prodding a cataleptic government is coming from outside, through boycotts of products from Indonesian forestland brought by neighboring countries, and hopefully India and China will add their influence. Iya nih!

Next Post: Human chimera

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Trust your Microbiome (Gut)

The gut feelings of psychic “scatomancers” who studiously examined the color, shape, and buoyancy of poo to forecast well-being and life prospects were more reliable than palm-reading, tarot cards, and astrology. They had “data,” and now we have the microbiome.

Who would have guessed a few years ago that traffic passing through the colon destined for elimination could be dignified with the name “organ,” or fecal transplants become a state-of-the-art medical therapy, or a national stool bank opened at M.I.T.?

The fermentation services of gut microbes were taken for granted, like their brethren in the garden compost heap. But no more!  The microbiome has a larger role in health than the digestion of food, and might even fill mysterious voids in human psychology and behavior. Since it is now being mined by researchers funded by the NIH Human Microbiome Program, the US military, European governments, and Big Pharma, the microscopic living soul of poo is no longer derided as an odious subject. The W.C. has swung open for scientific limelight to shine inside.

Friends or foes?

Friends or foes?

The first rays were focused on gut microbes by Elie (Ilya) Metchnikoff who introduced the concept of probiotics over a century ago. He studied people in the Caucasus Mountains reputed to live longer than anywhere else (their claims now repudiated), attributing their luck to fermented yogurt for conquering the putrefying bacteria supposed to release poisons into the body. He thought an unhealthy diet promoted growth of malign microbes with pro-inflammatory (pro-aging) effects that could lead to cardiovascular and other diseases which curb our years. Yogurt was proclaimed an elixir of life.

But his radical idea wasn’t sustained until modern bacteriology and genomics revealed the microbiome world and endorsed therapeutic probiotics. A recent study found that probiotics extended longevity in mice, but more surely they restore and rebalance the gut’s microbiome after antibiotic treatment and various intestinal ailments. It is easy to imagine that patients will soon take capsules packed with beneficial bugs for Crohn’s disease and irritable bowel, although cartoonists may rue the day when this more discreet treatment replaces fecal transplants for C. diff. infections.

Wilder speculations about the impact of microbes in mental health and ability were made by one of Metchnikoff’s contemporaries. Robert T. Morris who helped to bring aseptic surgery to America, wrote in Microbes and Men (1915): “A man is only what his microbes make him … freedom of the will is subject to dictation by the microbe.” He dared to suggest that microbes affect human character, psychopathy, and even genius. Sounds exaggerated?

He was not the first to notice that some of the most creative people had poor health—Nietzsche, Schopenhauer, and you name the rest. We might imagine a melancholic George Orwell inspired to write stories during his last tuberculous years, but is it really plausible that microbes themselves or their products boost the highest and the meanest achievements of the human mind? Morris’s big idea was nebulous, but at least a nice contradiction of Hereditary Genius (1869, 1892) by Francis Galton, the man leading the charge to eugenics who thought that genius and psychopathy ran in families. Since they occur rather sporadically, it is not quite so ridiculous to wonder if microbes play a role, or at least in combination with certain genetic alleles. Besides, we know the rabies virus affects behavior– rage, fear, and hydrophobia—and cumulating evidence suggests that Lyme disease and infectious mononucleosis cause chronic fatigue and other neurological symptoms.

So why not the microbiome too, which consists mostly of bacteria that vastly outnumber cells in the body? A gathering breeze of data supports the idea.

Tiny viruses slip easily through the blood-brain barrier, but bacteria can assault the fortress indirectly via fatty acid metabolites or triggering inflammation and powerful cytokine molecules from the immune system. The data are still far from sure, but animal experiments and association studies offer tantalizing clues that the microbiome affects the brain.

Germ-free mice have subtle neuroanatomical differences compared to normal animals—less serotonin (linked with depression in humans) and myelination (affecting nerve conduction), and altered transmission at synapses. More compellingly, gut microbes transplanted from one strain of mouse to another change the behavior of the recipient to mirror the donor’s.

Human populations are much harder to study but, for example, when Walkerton was flooded in 2000 the Canadian town’s water supply was contaminated with E. coli and Campylobacter many of its residents developed irritable bowel syndrome, anxiety, and depression. The question remains—were their symptoms “purely psychological” (a non sequitur?), or were they caused by inflammation from the original infection? Persistent, low-grade effects are hard to expose, as we know from the controversy over “chronic Lyme disease,” although science will eventually get to the bottom of it.

The neuroscience community with its refined sensibilities isn’t accustomed to musing about stool stories, but we hear murmurs about a relationship between the microbiome and autism, anxiety, Alzheimer’s disease, and schizophrenia.  The prospect of research grants is bending ears.

Next Post: Indonesia on Fire

 

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Caffeine gives Bees a Buzz

Writers, as well as lots of other folk, believe they need to be caffeinated to discover their creative side and help burn the midnight oil. The downside of drinking coffee and other caffeine-rich drinks is physical dependence, with withdrawal symptoms starting at surprising low levels of consumption of one cup of strong coffee per day, or equivalent to 100 mg of caffeine.

Bees too get hooked on caffeine, because it boosts their memory.  Caffeine is found in many flowering plants where it can affect bee behavior at much lower concentrations than are present in coffee, tea, cacao, and yerba mate.Comb+ bees

When researchers at the University of Sussex at the University of Sussex offered nectar feeders to honey bees, the insects remembered the ones that contained tiny traces of caffeine and returned again and again. At first sight, it’s an odd finding because the compound is thought to be present in some plants as a deterrent against animals that might eat them, because it has a bitter taste and is somewhat toxic. The bees that found the caffeinated nectar performed the famous waggle dance when they went home to their hive, which was a coded navigation instruction for their sisters to find the source. But the bees returning from control feeders danced less and persuaded fewer of their sisters to find their food, even though the nutrients and energy in the nectar sources were identical.

The difference between the experimental and control nectar was like comparing a “sports energy drink” like Rockstar Energy Shot, which contains a whopping 230 mg caffeine and only 10 calories per serving according to Consumer Reports, with Crush Orange soda, which is caffeine-free but has 160 calories. The first drink provides the sensation of energy while the second provides real energy.

Our lesson is that plants can fool bees, because when flowers offer more caffeine they get more attention, and better pollination services. The bees get nothing out of it, and might even be losers if the caffeine-rich nectar they prefer is nutritionally inferior. Of course, a bee brain is so tiny it is easily fooled, but caffeine-rich plants are duping big brains too.

Caffeine boosts human attention and memory by potentiating neural traffic in the synapses of the hippocampus and neocortex. We enjoy its effects, but the coffee plant and other caffeinators are coercing us into helping them to proliferate, just as they do with the bees. Coffee plants probably originated in the Ethiopian Highlands, but our liking of the caffeine kick has made us propagate the plants across three continents, now generating over seven billion kilograms of coffee beans for our habit. That is the second most valuable traded commodity in the world, and has zero nutritional benefit.

Out of Africa

Out of Africa

Next Post: My Microbiome

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