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Marine Life

Marine life includes an incredible and vibrant array of wild animals that live in the ocean. From tiny phytoplankton to massive blue whales, marine life is a vital source of food, energy and life for the entire planet.

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The Amazing Mantis Shrimp Punches Its Prey, Plus More Colorful Facts

These brightly colored crustaceans can smash aquarium glass or quickly cut through a human finger, so whatever you do, keep your distance.

What's the Difference Between Manta Rays and Stingrays?

These two sea creatures can be easy to confuse. But they're actually quite different. We talked to experts to find out how to tell them apart.

'Roly-poly' Bugs Are Great Garden Composters

Roly-poly bugs are natural soil conditioners because they process decomposing matter, helping keep your garden soil clean and healthy. And — fun fact — they're crustaceans, not insects.

7 Reasons a Cuttlefish May Be Smarter Than You

This master of camouflage can count, gender-bend and also use a hidden weapon to outsmart its enemies.

Some Starfish Have Up to 40 Arms! Plus 10 Other Starfish Facts

What lives in water, has no gills, scales or fins and is not a fish? Yep, a starfish — which is why marine biologists have renamed these creatures sea stars.

Meet Inspector Clouseau, Australia's Neon Pink Manta Ray

A bright pink manta ray named Inspector Clouseau is causing a splash on the runway of the Great Barrier Reef.

How These Hot-pink Slugs Outlasted the Australian Brush Fires

Proactive sluggishness, along with the ability to squeeze into tight spaces, keeps these slugs safe from predators like birds, toads and, well, fires.

Seahorses Have Hotels! Plus 9 Other Amazing Seahorse Facts

Dwindling natural habitats are causing a significant decline in certain seahorse species. To bolster populations, researchers in Australia are building seahorse hotels and leaving the lights on.

Sea Urchins Are the Edible Pincushions of the Ocean

What sea creature looks like a spiny pincushion and is considered a delicacy to gastronomes around the world? Yep, the sea urchin.

Geoducks: The World's Most NSFW Mollusk

These saltwater clams are the largest on the planet, and some can live as long as 100 years. And despite their, well, looks, they're pretty darn tasty.

Tracking Down the Elusive Giant Squid

Rumors of giant squid have terrified sailors for centuries, but new technology is now helping to bring these mysterious creatures up toward the light.

Box Jellyfish: World's Most Venomous Sea Creature

Most jellyfish are more bothersome than threatening, but the box jellyfish is so poisonous you might not make it out of the water alive.

That Blob on the Beach Is Sea Pork

Is that a dolphin pancreas? Some extremely firm manatee vomit? Nope, it's sea pork!

Coconut Crabs: Crustaceans on Steroids

The biggest land-dwelling arthropod can crack into everything from coconuts to carcasses, but they're also really vulnerable.

This Organism Is Part Plant and Part Animal

The single-celled Mesodinium chamaeleon harnesses algae, which lives inside it, for energy.

Chainsaw Lobster Among New Deep-sea Species Found in Java Sea

The first-ever deep-sea exploration of West Java seas netted more than 12,000 marine creatures, including some new species of crabs, prawns and lobsters.

Ghostly, Adorable Dumbo Octopus Spotted by Deep Sea Rover

The Dumbo octopus is just one of the amazing creatures filmed by the most recent voyage of the E/V Nautilus.

Sea Cucumber: Animal or Vegetable?

The kindest thing you can say about a sea cucumber's physique is that it looks very much like a large hoagie bun dressed in a lumpy old sweater.

Stinging 'Sea Lice' Invading Atlantic Beaches

Sea lice aren't actually lice — they're jellyfish — but they're no fun when they get in your bathing suit.

Vampire Squid Don't Actually Suck Blood

You can't tell a book by its cover, and you can't tell a squid by its Nosferatu getup.

Sea Spiders Breathe Through Pores in Their Legs

Sea spiders don't do anything by the book, and researchers have just gotten to the bottom of how they breathe.

Eternal Sunshine of the Snail Mind?

Researchers have successfully used RNA to transfer a memory from one sea snail to another.

Sea Slugs Go Solar by Stealing From Algae

By incorporating algae into their bodies, these beautiful sea slugs become one of the few animals with the photosynthetic ability of a plant.

How Do Snails Get Their Shells?

Snails can't pick and choose their shells like hermit crabs can. In fact, eviction means death. So how do those hard shells form over snails?

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