Evolutionary biologists show that the color variants of female cuckoos are based on ancient mutations

PHYSorg
Apr 24, 2024, 2:00 pm187 pts
Every cuckoo is an adopted child—raised by foster parents, into whose nest the cuckoo mother smuggled her egg. The cuckoo mother is aided in this subterfuge by her resemblance to a bird of prey. There are two variants of female cuckoos: a gray morph that looks like a sparrowhawk, and a rufous morph. Male…

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