Chalnoth
Senior Contributor
Completely worthless, as far as evolution is concerned, if they don't reproduce.Logically speaking, homosexuality is at least a successful temporary survival strategy; if you cannot pair-bond and have offspring, two organisms can feed more successfully in pairs (one foraging, one defending the empty nest) and hence increase their survival potential.
Now I think about it, I think I read something similar about lesbian Herrring gulls not so long back....
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