Bagheera is an educational web site about animals vanishing from Earth. The Bagheera website includes case studies on endangered species, a classroom ...

Animals are multicellular organisms that play an integral role in nature. Read about the different types of animals at HowStuffWorks.

Everything you wanted to know about dinosaurs--including how dinosaurs lived, what they looked like, and why they went extinct. Plus: an A to Z list o...

Chat with friends, play online games, create a profile, or get help with school. Read game reviews, movie ratings, celebrity gossip, sport news, and ...

Nature - the world

YouTube is a place to discover, watch, upload and share videos.

Reporting our world daily: original nature and science coverage from National Geographic.

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sit...

A Web site featuring highlights of the Smithsonian Institution’s scientific research in the fields of anthropology, astrophysics, conservation biolo...