Do birds have teeth? Not anymore, but they once did, when they were more similar to dinosaurs.
Unlike their contemporaries the dinosaurs, crocodiles managed to survive whatever killed off their Jurassic cousins. So what accounts for their longevity?
The oldest dinosaur nests have unearthed some surprising secrets...
New fossils unearthed in China cast light on the evolution of today's fliers.
We're related... to something that looks like an eel!
Picture this: it's the Cambrian period. There are all sorts of strange looking creatures swimming and crawling around the ocean floor...
Giant penguin populations started to decline about twenty five million years ago.
Scientists have found evidence that by the time modern humans arrived in Europe, Neanderthals had already experienced an extinction scare.
Did toxic tar balls cause the health problems associated with the Chumash people?
Suppose you had the ability to wind back the clock to just before life appeared on earth and let it all happen again. Would life evolve in the same way twice?