AlteredEgo
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Stronzo said:I'm interested in this post. I referenced it before.
But if 'we've been selectively breeding dogs for two hundred centuries' what have we been doing to our own species bigdirigible since time immemorial? I put the question out there simply for consideration.bigdirigible said:Penguins confined to a cage or tank in a zoo are not, in any meaningful sense, in "nature". And, since we've been selectively breeding dogs for something on the order of two hundred centuries, their connections with "nature" are also tenuous.
Excellent point! Further, I have seen gay ducks who refused females outright, even when outnumbered by them. I have yet to stumble accross lesbian ducks, however.
Consider this, if you dare.
Among birds, for instance, studies show that 10 to 15 percent of female western gulls in some populations in the wild are homosexual. Females perform courtship rituals, like tossing their heads at each other or offering small gifts of food to each other, and they establish nests together. Occasionally they mate with males and produce fertile eggs but then return to their original same-sex partners. Their bonds, too, may persist for years.
Among mammals, male and female bottlenose dolphins frequently engage in homosexual activity, both in captivity and in the wild. Homosexuality is particularly common among young male dolphin calves. One male may protect another that is resting or healing from wounds inflicted by a predator. When one partner dies, the other may search for a new male mate. Researchers have noted that in some cases same-sex behavior is more common for dolphins in captivity.
Male and female rhesus macaques, a type of monkey, also exhibit homosexuality in captivity and in the wild. Males are affectionate to each other, touching, holding and embracing. Females smack their lips at each other and play games like hide-and-seek, peek-a-boo and follow the leader. And both sexes mount members of their own sex.
Paul L. Vasey, a professor of psychology and neuroscience at the University of Lethbridge in Canada, who studies homosexual behavior in Japanese macaques, is editing a new book on homosexual behavior in animals, to be published by Cambridge University Press. This kind of behavior among animals has been observed by scientists as far back as the 1700's, but Mr. Vasey said one reason there had been few books on the topic was that "people don't want to do the research because they don't want to have suspicions raised about their sexuality."
Some scientists say homosexual behavior in animals is not necessarily about sex. Marlene Zuk, a professor of biology at the University of California at Riverside and author of "Sexual Selections: What We Can and Can't Learn About Sex From Animals" (University of California Press, 2002), notes that scientists have speculated that homosexuality may have an evolutionary purpose, ensuring the survival of the species. By not producing their own offspring, homosexuals may help support or nurture their relatives' young. "That is a contribution to the gene pool," she said.