Study shows some polar bears in the Arctic are shedding pounds when they should be beefing up; scientists blame climate change for dwindling ice...

Truckloads of road salt used to keep highways ice-free in the winter are starting to take a toll on the environment...

Five Pennsylvania death row inmates are challenging Corrections Department policy that keeps them isolated most of the time, describing it as degrading and inhumane...

The primate barrier has been broken: For the first time, scientists have successfully created monkeys by using the cloning technique that produced Dolly the sheep. Are humans up next?...

Activists decry all-male cast in Harvard's Hasty Pudding show and want Mila Kunis to help them...

Scientists taking a new shot at a universal vaccine to prevent regular winter flu and the next super-flu, too...

Wildlife officials say Canada lynx no longer need special protections in the United States following measures to preserve populations of the snow-loving big cats...

Wildlife managers in Florida say they want to remove roaming monkeys from the state because some are excreting a virus that can be dangerous to humans...

A Maine marine biologist says footage of her swimming with a humpback whale shows the large mammal protecting her from a tiger shark...

Two new studies show global warming is making oceans sicker, depleting oxygen and harming coral reefs...