In Spain scientists have discovered 13-million-year-old fossils of a new species of ape. The species may have been the last common ancestor of humans and all great apes living today. Includes photo gallery.

A study in central Africa suggests that logging and tropical rain forests can coexist. Some environmental groups disagree.

In Spain scientists have discovered 13-million-year-old fossils of a new species of ape. The species may have been the last common ancestor of humans and all great apes living today. Includes photo gallery.

Menacing body posture can be as threatening as a frightening facial expression, according to new research. The finding may explain how fear spreads.

Scientists have figured out how so-called Jesus lizards are able to scurry across the surfaces of ponds and streams.

National Geographic News interviews Darwinist Richard Dawkins on evolution and his latest book, The Ancestor's Tale.

A fragment of a bear skull housed for several years in a Canadian museum may be rewriting the history of North America's brown bears.

The European Union's heavy fishing off West Africa may be causing a rise in poaching of Africa's wildlife as hungry Africans seek alternative protein, a new study suggests.

The Colombian poison-dart frog and six South Pacific bird species use the same rare neurotoxin in their skin and feathers. Now researchers say the animals may eat beetles to obtain the poison.

Scientists have found that the ice in Greenland and the Arctic is melting so rapidly that most of it could be gone by the end of the century. Low-lying lands could be flooded and polar bears could go extinct, among other possibilities.

Birder Mathew Tekulsky reveals the effectiveness of a concealed location for viewing birds, as he describes the behavior of quail and jays in his yard.

With The Polar Express chugging into movie theaters and a fictional North Pole, we're finding out that sometimes truth really is stranger than fiction. Photo Gallery

The bird flu known as H5N1 has killed millions of poultry in east Asia. Now researchers fear it may be tougher and more dangerous to humans than previously suspected.

Species in the air and on the ground are in deep trouble, according to two recent studies tallying steep declines in bird and amphibian populations.

South Africa's Kruger National Park elephant population has nearly doubled in recent years, causing heavy habitat destruction and invasion of adjacent farms. The government may soon approve killing as a solution.