A Real-Life Sharktopus: Scientists Capture Footage of Octopus Riding Shark’s Back

Marine scientists in New Zealand have documented the world's weirdest road trip pairing.

A ‘Real Super Female’: 310-Mile Stretch of Seaweed May Be World’s Biggest Clone

A female bladderwrack seaweed plant in the Baltic Sea propagated clones across hundreds of miles.

An Orca Pod Off Mexico Has Learned to Kill Enormous Whale Sharks

Marine biologists documented the never-before-confirmed behavior among orcas living in the Southern Gulf of California.

These Weird Sea Creatures Can Fuse to Become a Single Animal When Injured

The combined comb jellyfish synced up their movements, melded their nervous systems, and even joined their digestive tracts.

This Fish Doesn’t Just Walk—It Tastes With Its Legs, Too

Sea robins are weird animals who use leg-like appendages to walk on the seafloor. Now, scientists know why they evolved those limbs.

Surprising Footage Shows Mysterious Orca Group Hunting Dolphins

The mysterious group of orcas, living off the coast of Chile, employs particularly grisly hunting methods.

Octopuses Like to Punch Their Fishy Hunting Buddies, New Study Reveals

The cephalopods team up with a variety of fish for hunting, and that results in some complex relationship dynamics that can include violence.

Swallowed Tracking Tag Confirms Large Sharks Are Hunting Each Other

It’s the first recorded case of shark predation on a porbeagle, a species whose numbers have dwindled dangerously low.

Thousands of Sharks Found Sleeping ‘Like a Carpet’ on the Ocean Floor

The enormous assemblage of snoozing sharks were all female, posing a mystery to marine biologists.

California Sea Lions Are Behaving Strangely Amid Brain-Attacking Algae Outbreak

The marine mammals are being poisoned by domoic acid—a neurotoxin produced by a species of algae.

Thriving Deep-Sea Coral Reefs Discovered Near the Galápagos

The massive reefs, rich with marine life, were found using high-resolution mapping technology, precise up to 2 millimeters.

12 Sea Creatures That Look Extremely Fake

Are these real deep-sea wildlife photos or computer-generated aliens?

Unknown Deep Sea Creatures Are Holding Onto a Ton of Carbon

A new study reveals just how important deep sea plankton are for removing carbon from the atmosphere.

Tahiti’s Newly Discovered Coral Reef Is an Absolute Masterpiece

The coral reef, which exists in much deeper water than other reefs, is surprisingly healthy.

Surreal Deep Sea Discoveries Include Glitter Worms and Upside-Down Lakes

Images from a recent deep-sea expedition off the coast of Mexico sheds light on the little-understood life in the deepest oceans.

Toxic Algae Has Sent Hundreds of Americans to the ER Since 2017, CDC Study Finds

Dangerous algae blooms will only become more commonplace as temperatures increase.

Florida’s Red Tide Is Driving Hundreds of Sharks Into Canals

It's a dangerous situation for local residents and the sharks.

Red Tide Has Killed at Least 791 Tons of Fish in Florida

Dead fish have washed up on beaches on Florida's Gulf Coast as the state faces an early red tide, bringing up similarities to the 2018 disaster.

Turkey’s Leaders Vow to Defeat Plague of ‘Sea Snot’ Amid Unprecedented Outbreak

Who knew the secret to getting nations to give a shit about climate change was just grossing them out.

Something Is Killing Florida’s Manatees in Record Droves