A veterinarian punched a syringe into the tough, wrinkled neck of an endangered sea turtle named Crowe one day this week at the South Carolina Aquarium and drew dark, red blood to test whether the animal was ready to be sent back into the wild.

Scientists are delving deep into the travels of whales — thanks to high-tech tracking devices — to try to help protect them.

Giant goldfish have mysteriously found their way into the famously crystalline waters of Lake Tahoe, the nation's second-deepest lake, alarming researchers and raising questions about the invasive species' long-term effects.

A new study of Asia's Coral Triangle, which contains nearly 30 percent of the world's reefs, shows that when it comes to ensuring a rich and diverse range of species, size matters.

Jane Goodall greets the audience by imitating a chimpanzee, then launches into an hour-long talk on her relationship with apes and how, from being a primatologist, she became an activist to protect them.

A young dolphin has been used to lure a pod of 100 to 150 others to safety after they were in danger of stranding themselves, Australian officials said Sunday.

The tenacious wolverine, a snow-loving carnivore sometimes called the “mountain devil,” is being added to the list of species threatened by climate change — a dubious distinction that puts it in the ranks of the polar bear and several other animals that could see their habitats shrink drastically due to warming temperatures.

Australia insisted Friday that protecting the Great Barrier Reef was a top priority, but conservationists WWF said not enough had been done to prevent UNESCO deeming it a world heritage site “in danger.”

Climate scientists said Wednesday they found evidence to back predictions for a future with lower average rainfall, even though Earth's past warming episodes had led to more precipitation, not less.

The energy big cities burn — mostly coal and oil to power buildings, cars and other devices — produces excess heat that can get into atmospheric currents and influence temperatures thousands of miles away, a new study found.