Both black and white rhinoceroses are actually gray. 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.

Najin, one of only two female northern white rhinos left in the world, walks in the pen where she is kept for observation. AP Photo/Sunday Alamba When Sudan, the world’s last male northern white ...

SUITA, Osaka Prefecture--An international research team may have found a way to save the northern white rhinoceros, perhaps the world’s most critically endangered mammal as only two, both female ...

What is the southern white rhinoceros? The southern white rhino and northern white rhino are subspecies of the white rhino. Aside from living in different parts of Africa, they differ slightly in ...