Feathers Flippers and Fur Author:Dorothy Hinshaw Patent Is it a bird or a plane? Believe it or not, an airplane's wings are designed to be like a bird's. Uncover the mystery... — Up, down, and around, the sea lion moves with the grace of a gymnast. But how does this underwater acrobat breathe below the waves? Learn... — Can you imagine a town with a population bigger that that of the entire US?... more » Not a town of people, but of prairie dogs.
A dog is man's best friend, right? But did you know that when you throw a ball for Fido to fetch, he is acting like his relative, the wolf? You might be surprised to find out the many ways in which dogs act like wolves.« less