Ancient DNA reveals the world's oldest family tree

Analysis of ancient DNA from one of the best-preserved Neolithic tombs in Britain has revealed that most of the people buried there were from five continuous generations of a single extended family.

Scaled, armored or naked: How does the skin of fish evolve?

Usually scaled, the skin of fish can also be naked or made up of bony plates that form an armor, sometimes even covered with teeth. But how has this skin evolved over the ages? To answer this question, researchers at the ...

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