From Pekingese to St. Bernard and greyhound, dogs come in such startling variety it's easy to forget they belong to the same species. The profusion of breeds today -- at least 150 -- reflects ...

One family, 37 different faces. From the recognizable and familiar like foxes, wolves, African wild dogs and coyotes to the lesser-known ones like the Japanese raccoon dog, fennec fox, dholes and ...

These charismatic, rabbit-size rodents live on North America's prairies and open grasslands in only a fraction of their former numbers. Prairie dogs live in underground burrows, extensive warrens ...