Which came first, the butt or the mouth? New research gives an answer
It's a chicken-and-the-egg question, but "which came first?" might not be the right way to think about it
A viper's zig-zag colors help blur their predators' vision
Scientists previously thought that animals' color patterns were either warning signs or camouflage — on these snakes, they are both
Do animals hear music? "The Evolving Animal Orchestra" follows a decade on the beat
Macaques, chimps, and one very smart bird take Henkjan Honing down a winding path
Mosquito-borne diseases get a boost from climate change
Bugs like it hot, and evolve faster when there's lots of carbon dioxide
How does an electric fish get its charge?
An accidental genome duplication (or two) created the highest frequency electrical discharge known in animals.
Chameleons do more than change color – their bones glow in the dark
Famous for camouflage, their visual communication turns out to run even deeper
Evolution is a lot messier than we thought
Cells evolved haphazardly, not in one overall arc
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How yellow-eyed penguins and sea lions took over New Zealand
A centuries-long cold snap changed the history of humans and wildlife
Why the first vertebrates to leave the ocean learned to see before they could walk
Advanced eyesight might have paved the way for better brains and complex thought