The crested anole is undergoing some remarkable changes — and fast.
Modern fish and salamander genes tell us a lot about where our hands come from — and a little about why we can’t regrow them after a fight.
Scientists believe today's birds descended from dinosaurs. Paleontologists dig up new fossils every few months that confirm this theory. Now, there's a new piece of evidence from experiments with a chicken embryo.
The old line "monkey see, monkey do" isn't entirely accurate: chimps and apes in the wild have rarely been observed passing new behaviors from one to the other. But recently, for the first time, a researcher caught on film a group of chimps doing exactly that.