Sabre-toothed flesh eaters, cow-sized plant guzzlers and a host of other warm blooded placental animals evolved alongside the badger sized burrowers. Within half a million years, mammals of all shapes and sizes had taken over on planet earth. All the big dinosaurs were wiped out and only the small ones with wings survived.
Steve studies how, when an asteroid collided with earth 66 million years ago, the mammals got lucky. More recently, however, he’s focussed on the long history of mammals.įor hundreds of millions of years, our mammalian ancestors remained small. rex, Triceratops and all the other dinosaur species developed when he was a teenager and continues to this day. Why did the dinosaurs die out and the mammals survive? How did dinosaurs evolve into birds? If you met a Velociraptor today you’d probably mistake it for a large flightless bird, says Steve.
Steve Brusatte analyses the pace of evolutionary change and tries to answer big questions.
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