Showing posts with label primates. Show all posts
Showing posts with label primates. Show all posts

Thursday, August 11, 2022

The Female of the Species

I've just read a recent book called BITCH: ON THE FEMALE OF THE SPECIES, by British zoologist and documentary filmmaker Lucy Cooke. It's a fascinating survey of the long-neglected status of females in biologists' studies of the animal kingdom—or should that be "queendom"? (Unfortunately, I'd be embarrassed to recommend it aloud by the title, a word I've ever spoken only in connection with dog breeding.) As the author describes the state of the field until recent decades, zoologists regarded males as the unquestioned drivers of evolutionary change, with females dismissed as "passive" and boring. She takes on the mission of demonstrating how wrong those scientists were.

She begins at the microscopic level, with gametes, revealing errors in the image of the female's egg as passively floating around waiting to be penetrated by one of the active sperm cells. In fact, the ovum has ways of controlling which sperm will be allowed to fertilize it. Chapter One, "The Anarchy of Sex: What Is a Female?" covers the development of the embryo, what determines its sex, and many examples of ambiguous sex among animals. Cooke goes on in subsequent chapters to explore the "mysteries of mate choice," in which females are much more active than had been assumed in the past, the assertiveness and competitiveness of females of various species, female-dominated animal social groups, how mating patterns can be a competition between male and female, sexual behavior in supposedly monogamous species, nonreproductive sexual encounters, the complicated nature of maternal behaviors, females who devour their mates, "primate politics," parthenogenesis, and the vital importance of older females in the societies of animals such as elephants and orcas. The final chapter, "Beyond the Binary," discusses intersex phenomena, animal homosexuality, and creatures who change sex. Some species can switch back and forth, and one fish is known to change sex up to twenty times in a day for optimal reproductive efficiency. Dedicated science-fiction readers will be reminded of Le Guin's aliens in THE LEFT HAND OF DARKNESS and the chieri in Bradley's Darkover series.

In 1981, anthropologist Sarah Blaffer Hrdy (yes, that's the correct spelling), whom Cooke often cites, published a book on a similar theme, THE WOMAN THAT NEVER EVOLVED. Her study, however, focuses more narrowly on primate and human females. Like Cooke after her, Hrdy's work emphasizes the masculine bias that led over a century of scientists to concentrate overwhelmingly on male animals' biology and behavior, treating females as mere footnotes to the main story. It's a bit mind-boggling that a wide-ranging study published in 2022 still has to start by clearing away that tangle of underbrush. Anyway, Cooke's entertaining and informative book illustrates that we don't have to seek very far on our own planet to find creatures whose biology and behavior may seem as alien as those of many fictional extraterrestrials.

Margaret L. Carter

Carter's Crypt

Thursday, May 27, 2021

Human Domestication

Here's a cartoon, funny in a slightly warped way, about the alleged negative consequences of Homo sapiens domesticating ourselves in the course of our evolution:

Yappy Lapdog Phase

Of course, the complainer's argument can be countered by the observation that tall, attractive people skilled at slaying lions aren't best suited to our present-day milieu. Contrary to popular belief, "survival of the fittest" doesn't necessarily (or even frequently) mean the dominance of the individual or group that can win a physical fight. "Fitness" refers to optimal adaptation to one's environment. For a social species such as ours, that environment is composed in large part of other people.

An article on human "domestication," with comparisons to the differences in personality between chimpanzees and bonobos:

How Humans Domesticated Themselves

In short, chimps are the more aggressive of the two species. Bonobos (formerly known as "pygmy chimpanzees") base their social structure more on peaceful interactions, often sexual. Not that regular chimps don't display cooperative, affectionate behavior, of course, but bonobos may be thought of as the more "domesticated" primates. While male bonobos can be aggressive, the females tend to keep them in check, an appealing example of gender balance among our closest animal relatives. The "friendliest male bonobos" are likelier to succeed than those who make enemies through aggressive dominance and have to stay on guard all the time, not to mention facing the disapproval of the females—a primate analogy to the concept of women's role in "civilizing" men, as in the nineteenth-century American West, maybe?

An anthropologist quoted in the article applies this premise to a variety of species (even plants, which cooperate with insects to spread pollen), including our own: "When you look back in nature and see when a species or group of species underwent a major transition or succeeded in a new way, friendliness or an increase in cooperation are typically part of that story." The article doesn't gloss over the dark side of human community-building, however. One method of enhancing cohesion within a group, sadly, is to capitalize on suspicion of other people from different groups. To overcome this inbuilt tendency to prejudice, we need to resist the temptation to "dehumanize" others who differ from ourselves.

Reverting to the cartoon character's complaint about humanity devolving from lion-slayers to accountants, consider Andy Dufresne, a banker, the unjustly condemned protagonist of Stephen King's "Rita Hayworth and the Shawshank Redemption" (filmed as SHAWSHANK REDEMPTION): Andy isn't physically suited to fighting off the bullies and sexual predators among his fellow inmates (although he makes a valiant effort and sometimes succeeds). But his intelligence, quick wit, and financial expertise enable him to make himself indispensable to the guards and the warden, thus ensuring his survival and relative safety in the jungle-like environment of the prison.

Even before modern Homo sapiens evolved, evidence shows that some hominids took care of physically disabled members of their tribe, a clear indication that ever since we began to "domesticate" ourselves, attributes other than lion-slaying prowess have been valued.

Margaret L. Carter

Carter's Crypt