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

USFWS shared wildlife stories that seem like they’d be fake, but they’re 100% real. For instance, a bobcat vs. a shark? It happened.

While SCUBA diving, a group of divers paused for a safety stop. Meanwhile, a bunch of tiger sharks came for a closer look . . .

Did these sperm whales just protect a diver from a curious (but deadly) oceanic white tip shark? The diver certainly believes so.

When a tiger shark eats your camera, you get some cool footage of exactly what it’d be like to be eaten alive by a shark. Yikes.

A photographer filmed a tiger shark and a massive sperm whale. Here’s why he says it’s the craziest encounter he’s ever seen.

“Tell me you’re in Australia without telling me you’re in Australia.” A shark and a croc star in a viral video.

A fisherman captured a shark in distress. He cut the shark open only to find a diver’s body inside. Watch happened?

Researchers were tracking a pregnant porbeagle shark when, well, something ate her. But what in the world eats an 8-foot-long shark?

If you had to put your money on one of these formidable ocean predators in an octopus vs. shark battle, which one are you betting on?