29.4.10

Η ΟΜΟΦΥΛΟΦΙΛΙΑ ΣΤΑ ΖΩΑ 1


Can Animals Be Gay?
By Jon Mooallem (nytimes.com, 29/3/2010)
The Laysan albatross is a downy seabird with a seven-foot wingspan and a notched, pale yellow beak. Every November, a small colony of albatrosses assembles at a place called Kaena Point, overlooking the Pacific at the foot of a volcanic range, on the northwestern tip of Oahu, Hawaii. Each bird has spent the past six months in solitude, ranging over open water as far north as Alaska, and has come back to the breeding ground to reunite with its mate. Albatrosses can live to be 60 or 70 years old and typically mate with the same bird every year, for life. Their “divorce rate,” as biologists term it, is among the lowest of any bird.
When I visited Kaena Point in November, the first birds were just returning, and they spent a lot of their time gliding and jackknifing in the wind a few feet overhead or plopped like cushions in the sand. There are about 120 breeding albatrosses in the colony, and gradually, each will arrive and feel out the crowd for the one other particular albatross it has been waiting to have sex with again. At any given moment in the days before Thanksgiving, some birds may be just turning up while others sit there killing time. It feels like an airport baggage-claim area.
Once together, pairs will copulate and collaboratively incubate a single egg for 65 days. They take shifts: one bird has to sit at the nest while the other flaps off to fish and eat for weeks at a time. Couples preen each other’s feathers and engage in elaborate mating behaviors and displays. “Like when you’re in a couple,” Marlene Zuk, a biologist who has visited the colony, explained to me. “All those sickening things that couples do that gross out everyone else but the two people in the couple? . . . Birds have the same thing.” I often saw pairs sitting belly to belly, arching their necks and nuzzling together their heads to form a kind of heart shape. Speaking on Oahu a few years ago as first lady, Laura Bush praised Laysan albatross couples for making lifelong commitments to one another. Lindsay C. Young, a biologist who studies the Kaena Point colony, told me: “They were supposed to be icons of monogamy: one male and one female. But I wouldn’t assume that what you’re looking at is a male and a female.”
Young has been researching the albatrosses on Oahu since 2003; the colony was the focus of her doctoral dissertation at the University of Hawaii, Manoa, which she completed last spring. (She now works on conservation projects as a biologist for hire.) In the course of her doctoral work, Young and a colleague discovered, almost incidentally, that a third of the pairs at Kaena Point actually consisted of two female birds, not one male and one female. Laysan albatrosses are one of countless species in which the two sexes look basically identical. It turned out that many of the female-female pairs, at Kaena Point and at a colony that Young’s colleague studied on Kauai, had been together for 4, 8 or even 19 years — as far back as the biologists’ data went, in some cases. The female-female pairs had been incubating eggs together, rearing chicks and just generally passing under everybody’s nose for what you might call “straight” couples.
Young would never use the phrase “straight couples.” And she is adamantly against calling the other birds “lesbians” too. For one thing, the same-sex pairs appear to do everything male-female pairs do except have sex, and Young isn’t really sure, or comfortable judging, whether that technically qualifies them as lesbians or not. But moreover, the whole question is meaningless to her; it has nothing to do with her research. “ ‘Lesbian,’ ” she told me, “is a human term,” and Young — a diligent and cautious scientist, just beginning to make a name in her field — is devoted to using the most aseptic language possible and resisting any tinge of anthropomorphism. “The study is about albatross,” she told me firmly. “The study is not about humans.” Often, she seemed to be mentally peer-reviewing her words before speaking.
A discovery like Young’s can disorient a wildlife biologist in the most thrilling way — if he or she takes it seriously, which has traditionally not been the case. Various forms of same-sex sexual activity have been recorded in more than 450 different species of animals by now, from flamingos to bison to beetles to guppies to warthogs. A female koala might force another female against a tree and mount her, while throwing back her head and releasing what one scientist described as “exhalated belchlike sounds.” Male Amazon River dolphins have been known to penetrate each other in the blowhole. Within most species, homosexual sex has been documented only sporadically, and there appear to be few cases of individual animals who engage in it exclusively. For more than a century, this kind of observation was usually tacked onto scientific papers as a curiosity, if it was reported at all, and not pursued as a legitimate research subject. Biologists tried to explain away what they’d seen, or dismissed it as theoretically meaningless — an isolated glitch in an otherwise elegant Darwinian universe where every facet of an animal’s behavior is geared toward reproducing. One primatologist speculated that the real reason two male orangutans were fellating each other was nutritional.
(συνεχίζεται)

Δεν υπάρχουν σχόλια: