Articles on Evolutionary biology

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Most people get acquainted with their appendix when it’s inflamed and about to rupture. Sebastian Kaulitzki/Science Photo Library via Getty Images

What does the appendix do? Biologists explain the complicated evolution of this inconvenient organ

The appendix has independently evolved at least 32 times across 361 mammalian species. What makes it an evolutionary darling when it’s more of a medical liability today?
Modern wolves and dogs both descend from an ancient wolf population that lived alongside woolly mammoths and cave bears. Iza Lyson/500px Prime via Getty Images

Thousands of genomes reveal the wild wolf genes in most dogs’ DNA

Today’s wolves and dogs share a common ancestor. But a deeper look at their genes reveals that interbreeding since dogs were domesticated 20,000 years ago hasn’t been as rare as scientists assumed.
ATP synthase is an enzyme that has been using phosphate to generate life’s energy for millions of years. Nanoclustering/Science Photo Library via Getty Images

Molecular ‘fossils’ offer microscopic clues to the origins of life – but they take care to interpret

A protein historian and evolutionary biochemist found that a protein sequence present across all known life didn’t form as researchers previously thought it did.

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