Birds
The first birds evolved out of earlier small dinosaurs late in the Jurassic period, about 150 million years ago. At this time, most of the bigger animals on Earth were dinosaurs.
Birds are like dinosaurs because they have . Many dinosaurs were warm-blooded, like birds. Some dinosaurs even had feathers, like birds.
Learn by doing - birds
To find out more about birds, check out these books from Amazon.com or from your library:
Face to Face with Frogs, by Mark Moffett (2008). Mostly about poisonous dart frogs, but it's got beautiful National Geographic pictures.
