Pope Francis urged princes, presidents, sheiks and thousands of ordinary people gathered for his installation Mass on Tuesday to protect the environment, the

A royal penguin that became stranded on a beach more than 1,000 miles from its sub-Antarctic home has died at a New Zealand zoo.

An injured female loggerhead turtle is swimming again thanks to a pair of prosthetic flippers.

About a dozen killer whales that were trapped under sea ice appeared to be free after the ice shifted, a leader of a northern Canada village said Thursday.

Elephants at the Berlin Zoo finally got a chance to tuck into their Christmas dinner: A feast of donated pine trees.

A look back at some memorable images of 2012.

Most primary school classes get a goldfish to keep, a hamster or a turtle if they're lucky — but children from one village in southern Russia got to play with

So what do these apes do? Buy red Ferraris? Leave their mates for some cute young bonobos? Uh, no.

Day turned into night for a swath of northern Australia, thanks to a total solar eclipse.

Spectators whooped and clapped with delight as the moon passed between the sun and Earth, leaving a slice of the continent's northeast in sudden darkness.

U.S. oil output is surging so fast that the United States could soon overtake Saudi Arabia as the world's biggest producer.

How do you pull a baby elephant out of a deep, muddy hole? A rope and a Land Rover. Then the payoff: A frantic baby elephant sprint to mom.

Lots of mothers wake in the middle of the night to feed their babies, but not many get up to give a bottle to an infant elephant.

Something about September keeps bringing out the record heat in the world.

Twenty-five species of monkeys, langurs, lemurs and gorillas are on the brink of extinction and need global action to protect them from increasing