PBS
Pbs: Nature: Walking With Giants: The Grizzlies of Siberia
This site gives lots of great information on grizzly bears in Siberia. Read about living near grizzlies, baby bears, and captivity of these animals.
Smithsonian Institution
National Museum of Natural History: American Mammals: Black Footed Ferret
Once widespread in the grasslands and western basins of North America, by 1987 Black-footed Ferrets were thought to be extinct in the wild. Captive animals were bred in an effort to save the species, and in 1991, some were reintroduced...