Sugar aversion hampers cockroach coupling

A new study from North Carolina State University shows the behavioral mechanism behind a sweet cockroach mating ritual that takes a bitter turn, resulting in rejected males.

Competition among worm sperm speeds up evolution

From elaborate dances to stunning plumage displays to dramatic head-butting, male animals have an array of ways to distinguish themselves from competitors while wooing a potential mate. But it's not their only chance to prove ...

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