Birds evolved from a small raptor like theropod.
Also, while I was at Yale, I had a job teaching kids at the museum.
Often extinctions in the ocean occur at the same time as those on land. Then again, the ice age extinctions lost many big animals, but not many sea faring ones.
Stegosaurus was common only on well drained, dry soil.
I want to be the Bob DeNiro of the Jurassic.
One researcher just determined that African and Indian elephants make each other sick. When a new animal or plant is introduced to a habitat bad things happen. The biggest danger to native wildlife is foreign wildlife.