Zoologists have known for many years that homosexuality isn't uncommon among animals. (My own cat has raised suspicions ever since he tried to mount a cowering male dachshund.) But I was surprised to learn recently that male sheep exhibit homosexuality at least as often as humans: roughly 8% of rams turn out to have sex exclusively with other rams.
This little piece of faunal ephemera might otherwise have gone unnoticed outside the rarely intersecting subcultures of gays and shepherds. But a few months ago, People for the Ethical Treatment of Animals launched a p.r. campaign on behalf of gay sheep. PETA claims that...
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