Dramatic footage shows a mom grizzly bear that fights off a larger male grizzly to defend her cubs. Have you seen this viral video?

A trail cam captured a stunning portrait of a black jaguar, and it really gives you an up-close look at the rare cat’s melanistic coloring.

A popular social-media video shows a rare phenomenon—an octopus riding a shark. Even the experts were shocked.

The Oregon Zoo wants some “pika watchers”—folks tasked with spying on adorable pikas in Columbia River Gorge.

A little dog cautiously approaches a massive anaconda in the bay—what will happen next? Watch it here and see for yourself.