Andrew Nierer was hiking along a trail near his house in Pennsylvania when the aggressive bear started stalking him up the mountain. That's when the bear started attacking him. Thankfully, Nierer's ...

Scientists have quantified how much climate change has driven the population decline of polar bears living in Canada's Hudson ...

A radar image shows the collision between a Black Hawk helicopter and an American Airlines plane. Desperate relatives waited for news at the airport hoping for a miracle. All 64 passengers and crew on ...

It's the first crisis of the 11-day-old Donald Trump's administration. The president claims the collision between the Black ...

Winter weather alerts are in effect for portions of New Mexico and Colorado as a powerful cross-country storm gains strength on its journey across the U.S., and now the Denver metro is on alert for ...