Series exploring east Africa's Great Rift Valley. On the vast savannahs, grazers and predators struggle to outwit each other, forcing primates to develop social systems. Show more Visible from ...

The Great Rift Valley channels a huge diversity of waterways - rivers, lakes, waterfalls, caustic springs and coral seas - from Egypt to Mozambique. Show more Visible from space, Africa's Great ...

HOUSTON, Texas (KTRK) -- An anonymous tip led investigators to rescue a wild cat from a north Houston home on Wednesday. The Harris County Precinct One Constable's Office released photos of the ...