Feathers Filippers Fur Author:K12 * 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 of feathers and how they help birds survive in the wild. — * 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 about the sea lion's amaz... more »ing ability to store oxygen and survive under water.
* Can you imagine a town with a population bigger than that of the entire United States? Not a town of people, but of prairie dogs. These towsn even have an alarm system to warn of approaching predators.
* A dog is mant'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