Sea Creatures
Rare 'Technicolor' Rainbow Sea Slug Found in England
It's only the fourth record of the species in the U.K., and experts say it's a sign of warming waters due to climate change
Scientists Can Now Pull Human DNA From Air and Water, Raising Privacy Questions
Environmental DNA helps monitor elusive and endangered animals, but it could be an ethical minefield when used with humans, new study shows
See the Breathtaking Ocean Life Found at Deep-Sea Vents
An international team of scientists discovered new hydrothermal vents along the Mid-Atlantic Ridge releasing mineral-rich water hot enough to melt lead
Scientists Solve a Sea Urchin Murder Mystery
A microscopic parasite that has been killing the Caribbean creatures since last year might also be at fault for a population collapse four decades ago
Why Male California Sea Lions Are Getting Bigger
The “raccoons of the sea” have varied diets, allowing them to grow large to compete for mates
The Pacific Garbage Patch Is Home to Coastal Species—in the Middle of the Ocean
These out-of-place organisms are thriving on floating trash, but they may compete with open-water species
Behold the Deepest Fish Ever Filmed
A juvenile snailfish was caught on video more than five miles below sea level in waters south of Japan
The Mediterranean Monk Seal Is Making a Comeback
The endangered sea creature, known for its reclusive nature, has re-emerged out of the shadows
These Sea Stars Are Literally Wasting Away—but They May Soon Receive Protection
Sunflower sea stars have been recommended for Endangered Species Act protection as disease leads them to “disintegrate into gooey masses”
DNA Buried in Sediment Helps Scientists Picture Past Ecosystems
Examining the evidence offers a way to look back at now damaged environments
Historic Treaty Protects Marine Life in the 'High Seas'
The United Nations agreement will help conserve 30 percent of the planet’s oceans by 2030
The Unusual European Journey of Thor the Walrus
It's rare to see one of these massive marine mammals in Western Europe, but Thor spent several months delighting crowds in multiple countries
These Mythical Sea Monsters May Have Been Whales With Unusual Dining Habits
Tales of creatures like the Norse “hafgufa” suggest ancient and medieval people may have seen whales trap feeding
In Alaska, Hungry Wolves Have Started Eating Sea Otters
After devouring their island's deer, these canines may be the first land predators to rely on sea otters as a main food source
These Gorgeous Photos Capture Life Inside a Drop of Seawater
A passion for the infinitesimal leads a photographer to discover the countless creatures that live unseen in the ocean
An Extinct Sea Cow May Help the Restoration of California’s Dwindling Kelp Forests
Researchers are modeling out what the ocean may have looked like when the seaweed-munching mammal roamed the shores
Scientists Unearth a Prehistoric Marine Turtle the Size of a Car
Fragments of the creature's pelvis and shell were discovered in the Pyrenees
Tiger Sharks Carry Cameras to Help Scientists Map Seagrass
A new study found what might be the world's largest seagrass ecosystem: a 35,500-square-mile meadow in the Bahamas
Polar Bears Are Gathering in Canada—and You Can Watch Them Live
Bears return to Churchill, Manitoba, every autumn to await the formation of sea ice on the Hudson Bay
‘Immortal Jellyfish’ Could Spur Discoveries About Human Aging
After reaching maturity, these deep-sea creatures can revert to a juvenile stage and repeat their life cycle
