WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to global levels in nearly 100 countries.

It will be a whale of a good time — for a good cause — when members of Mt. Joy, Rainbow Kitten Surprise, Young the Giant, ...

These antiheroes of the American West are actually not so bad. New research reveals they're good parents and neighbors, and ...

A Soviet zoologist with a passion for long-extinct mammals set out to reinvigorate the landscape of the Caucasus in the 20th ...

Not all cities are created equal when it comes to urbanism! Today, I’m ranking 32 North American cities based on their urban ...

The fossilized leg bone of a giant “terror bird” discovered in Colombia provides new insights into ancient South American ecosystems, suggesting the bird was a major predator in a once-lush region ...

These endangered animals in the U.S. are almost extinct. From the Hawaiian monk seal to the Florida panther, find out what ...

Five Malayan tiger cubs were born at the Tulsa Zoo, a number that is believed to be a first among accredited zoos.

The fossil of a massive predator called a terror bird that roamed South America 12 million years ago is from the largest ...

Terror birds were apex predators some 12 million years ago in South America. A newly published discovery could be the largest yet.

A Colombian rancher has discovered a fossilized bone that points to the existence of a giant terror bird species. The fossil, ...

While past terror bird fossils placed the meat-eating birds at 3 to 9 feet tall, new findings suggest that some were even ...