Bryce Canyon National Park officials say the iconic hoodoo known as "The Sentinel" has ended its watch.
Leonardo DiCaprio and the head of his foundation met Wednesday with President-elect Donald Trump to discuss how jobs centered on preserving the environment can boost the economy.
In a towering forest of centuries-old eastern hemlocks, it's easy to miss one of the tree's nemeses. No larger than a speck of pepper, the Hemlock woolly adelgid spends its life on the underside of needles sucking sap, eventually killing the tree.
The elusive weasel-like mammal poked its head out of the wooden crate, glanced around and quickly darted into the thick forest of Mount Rainier National Park -- returning to a landscape where it had been missing for seven decades.
New Jersey's long-debated black bear hunts have stoked strong passions, blasted by animal rights activists as inhumane and supported by hunters and wildlife officials who say they help control the population and minimize run-ins with humans.
The oldest known gorilla living in a zoo, a female named Colo, is slated to undergo a surgical biopsy sometime before her 60th birthday on Dec. 22.
The summits of Hawaii's Big Island could get more than two feet of snow, with a winter storm warning in effect through Saturday.
A California mountain lion placed under a death sentence for killing nearly a dozen alpacas owned by a Malibu woman was granted a reprieve Thursday when the woman announced she wouldn't act on a state-issued permit giving her the right to kill the animal.
"Game of Thrones" star Maisie Williams wants everyone to stop buying tickets to marine shows. She says it's the best way to stop the capture and killings of dolphins in Japan.
A US$4 million lighting makeover promises to dial up the wow factor of Niagara Falls at night.