A wildlife photographer spotted a rare all-black king penguin on South Georgia Island and captured some photos and videos. See them here.

A California family let their dog out in the morning, and it chased a cat up a tree—except the “cat” was actually a mountain lion.

A photo of a river in Tanzania shows a ton of large, gray river rocks . . . except they’re not river rocks, they’re hippos. But why so many?

An expedition guide captured a great moment when a curious polar bear came up to a tour vehicle to say hello to some tourists. Watch here.

A man had a chance encounter with the largest shark species in the world, a whale shark, and he says he won the “diver’s lottery.”

A grizzly bear enjoyed a pristine snow day, relaxing and even catching tiny snowflakes on its tongue. Watch it here.

A blue bird became fascinated with a trail cam—so much so that it stopped in its mid-air tracks and stared right into the camera. Watch here.

A mysterious canine crossed paths with a trail camera, and experts are asking the internet to weigh in. Is it an elusive “woyote dog”?

A wildlife photographer captured a video of marmots “talking” to each other, and it’s definitely worth a listen.

Two heads aren’t better than one when you’re sharing the same body, unfortunately. A rare two-headed turtle has the world on its side, though.