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.
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.
What sea creature looks like a spiny pincushion and is considered a delicacy to gastronomes around the world? Yep, the sea urchin.
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.
Rumors of giant squid have terrified sailors for centuries, but new technology is now helping to bring these mysterious creatures up toward the light.
Most jellyfish are more bothersome than threatening, but the box jellyfish is so poisonous you might not make it out of the water alive.
Is that a dolphin pancreas? Some extremely firm manatee vomit? Nope, it's sea pork!
The biggest land-dwelling arthropod can crack into everything from coconuts to carcasses, but they're also really vulnerable.
The single-celled Mesodinium chamaeleon harnesses algae, which lives inside it, for energy.
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.
The Dumbo octopus is just one of the amazing creatures filmed by the most recent voyage of the E/V Nautilus.
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.
Sea lice aren't actually lice — they're jellyfish — but they're no fun when they get in your bathing suit.
You can't tell a book by its cover, and you can't tell a squid by its Nosferatu getup.
Sea spiders don't do anything by the book, and researchers have just gotten to the bottom of how they breathe.
Researchers have successfully used RNA to transfer a memory from one sea snail to another.
By incorporating algae into their bodies, these beautiful sea slugs become one of the few animals with the photosynthetic ability of a plant.
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?
To boil or not to boil ... that is the question.
Crocodiles are known to eat just about anything. But sharks? A scientific team found evidence that they've chowed down on those predators too.
Don't think you have much in common with a jellyfish? What researchers just discovered may surprise you.
Researchers discover site of 15 gloomy octopus, a species that has previously been known for being reclusive.
The magnificent bryozoan is a colonial organism that lives in warm ponds and lakes usually east of the Mississippi River. So what's it doing in western Canada?
How giant squid process visual information has long been a mystery, but a new study finds their visual processing is surprisingly uncomplicated.
If you thought this underwater creeper looked heartless, you're actually not that far off.
In the first-ever video of its kind, two male cuttlefish in the wild go head-to-head over a coveted mate.