Tag: Evolution

Why we don’t have tails

It has been an enduring evolutionary mystery since the days of Charles Darwin: When did humans lose their tails? Apes–including humans and chimpanzees–are all primates who do not have long tails like lemurs and our other monkey relatives. Thanks to some advances in gene-editing technology, a new clue to ape tail loss has been uncovered. […]

Why are there so many snakes?

In a square-rectangle sort of way, snakes are technically lizards, but for semantics’ sake and because snakes are so distinctive, biologists separate snakes and lizards into different categories. Despite being nested within the same branch of the tree of life, legless, lengthy, and slithering snakes–capable of unhinging their jaws and delivering a venomous bite–stand out […]

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