More than 30 Federal agencies formed a working group in 1997 to make hundreds of Federally supported teaching and learning resources easier to find. The result of that work is the FREE web site. For an overview of what's available here at FREE, please vis

The biology of animals that have been traditionally hunted are usually well known. Throughout the eighteenth and nineteenth centuries Enhydra lutris, the sea otter, was heavily exploited by man, prized universally for its exceptionally warm, sheik and tre

Nestled within a shady enclave of the Valley Trail is one of the National Zoo's most entertaining exhibits. Children press their noses against the glass, or peer over the enclosure wall trying to catch a glimpse of the quirky inhabitants. "Where are

A large, aquatic relative of the elephant that grazes underwater vegetation around the coasts of Florida, the Caribbean and South America. Manatees a have large, rounded bodies ending in a paddle-shaped tail fluke and their front limbs are modified into f

This is the home site of the National Geographic Daily News. This particular page contains numerous articles about all aspects of the environment, ecology, geography, etc.--from global warming to penguins. This is an excellent tool for science and socia