The curious minds at What If reveal the scariest ocean creatures you never knew existed, exploring deep-sea predators, bizarre adaptations, and unseen terror.

Megalodon usually gets all the attention when it comes to sea monsters, but ancient oceans were full of predators just as ...

Kemp's ridley sea turtles are among the most endangered species of sea turtles in the world. They reside along the east and ...

An endless stream of shark movies has swum into theaters in the more than 50 years since Jaws, and the scariest shark movie since Steven Spielberg’s 1975 masterpiece just took a bite out of HBO Max.

A guide to 13 adrenaline adventures that look terrifying but run on strict rules—tandem skydiving, ziplines, rafting, ...

The viper dogfish is easily one of the creepiest deep sea creatures due to its fangs and wide jaw. Read here to learn more ...

Sea creatures make some of the scariest noises you can imagine, and when you're blind like me, you tend to imagine the worst.

The "deep sea" isn't a technical term, but it can still be very descriptive when grouping different species. The ocean is ...

Learn how the harbor seal became Rhode Island’s state animal and what this whiskered swimmer says about the Ocean State.

A mass die-off along the Texas coast has afflicted a strange, rarely seen creature — and recent cold weather could be to blame. “The biggest news this week has to be the mass die off of these sea ...

In case you've faced some hurdles solving the clue, Spiky sea creature that digs into rock, we've got the answer for you. Crossword puzzles offer a fantastic opportunity to engage your mind, enjoy ...

Scientists on California’s Central Coast recently spotted a giant, evasive seven-arm octopus while on a research expedition in Monterey Bay. The rare creature, called Haliphron atlanticus, was seen by ...