They are different not in color but in lip shape. The black rhino has a pointed upper lip, while its white relative has a squared lip. The difference in lip shape is related to the animals' diets.

A fox with rare black fur made a brief roadside appearance in Yellowstone National Park last week. The fox’s coloring is ...

They are different not in color but in lip shape. The black rhino has a pointed upper lip, while its white relative has a squared lip. The difference in lip shape is related to the animals' diets.

Wild animals peculiar to China ... red-crowned crane, red ibis, white-flag dolphin and Chinese alligator, totaling more than 100 species. The black-and-white-haired giant panda weighs on average ...