One of the biggest quests in biology is understanding how every cell in an animal's body carries an identical genome yet ...

Learn how mapping gene-control switches in an ancient sea anemone reveals how identical DNA can produce many different cell ...

A variety of studies are showing that rough-and-tumble play is important for animals and kids alike.

Evolution is slow, but with the right experimental set-up—and enough time to spare—you can watch nature do its methodical ...

Large blocks of genes conserved through hundreds of millions of years of evolution hint at how the first animal chromosomes came to be. Chromosomes, the bundles of DNA that star in the mitotic ballet ...

A microorganism whose evolutionary roots can be traced to the era of the first multicellular animals may provide a glimpse of how single-celled organisms made a critical evolutionary leap. In ...

Once upon a time, there were a bunch of one-celled microbes, swimming, eating, reproducing, doing all the things that a one-cell bit of life can do. Then, some time later, there were their descendants ...

Researchers find Apennine brown bears evolved into a smaller, less aggressive animal after centuries of coexistence with ...

Animals can evolve separately but end up evolving toward other species, too, or even spontaneously evolve the same characteristics in totally separate groups. Birds and bats can both fly using ...

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