【Economist】Evolution: Shell game

正文

请到「今天看啥」查看全文

An intriguing example of convergent evolution is explained

THE exhausting chore of raising young is one a few birds manage to avoid. By laying their eggs in the nests of others, they dupe those others into feeding their nestlings. Such brood parasitism has arisen independently at least three times, in the groups known as cuckoos, cowbirds and honeyguides. That gives biologists a tool with which to explore the phenomenon of convergent evolution, in which unrelated lines with similar ways of life evolve similar adaptations that help them to thrive.

请到「今天看啥」查看全文