Sea Creatures

Copepods at various life stages teem inside a water droplet. The creatures go through six larval and six juvenile stages between egg and adulthood. They grow a new pair of legs at each stage.

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

A drawing of the extinct Steller's sea cow

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

An illustrated reconstruction of Leviathanochelys aenigmatica.

Scientists Unearth a Prehistoric Marine Turtle the Size of a Car

Fragments of the creature's pelvis and shell were discovered in the Pyrenees

A tiger shark swims above seagrass.

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 back in Churchill, Manitoba.

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 (Turritopsis dohrnii) are smaller than the nail on your pinky finger.

‘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

Dugongs have disappeared from waters off of China.

Dugongs Are ‘Functionally Extinct’ in China, Research Suggests

Scientists found no verified sightings of the massive marine mammals in the region since 2000

A species of Chelonaplysilla sea sponge ejects mucus.

Sea Sponges Sneeze Sediment-filled Snot

New research reveals the animals expel mucus as a form of self-cleaning and other creatures eat the stuff up

A new species of giant isopod, Bathynomus yucatanensis

New Species of Deep Sea Isopod Discovered

The giant crustacean was originally mistaken for a different species at an aquarium in Japan

The crustacean Idotea balthica can pollinate red seaweed.

These Pollinating Crustaceans Are the Bees of the Sea

Small, bug-like creatures can transfer pollen to red seaweed underwater

A green crab, Carcinus maenas

New Hampshire Distillery Makes Whiskey Out of Invasive Crabs

Each bottle uses about one pound of green crabs

A model of an oarfish

Rare Oarfish Caught on Video on Great Barrier Reef

This is the first record of the species on the eastern seaboard of Australia

New research shows how seals use their whiskers to aid them as they hunt. 

Seals Use Their Whiskers to Help Hunt in the Deep Ocean

New video footage shows rhythmic whisker movements that have never been observed before in seals in the wild

The eggs laid at at Galveston Island State Park were transported to an incubation facility, which will improve their chance of survival.

107 Critically Endangered Sea Turtle Eggs Found in Texas State Park

This is the first time in ten years that a Kemp’s ridley sea turtle has nested at the park

A common bottlenose dolphin swimming off the coast of France. 

Dolphins Have Different Whistles Based on Their Environment

Genetics have little influence on the differences between dolphin whistles, but location and population demographics play an important role

When a group of 360 dolphins visited corals located in the Northern Red Sea, reseachers noticed that calves under one year old would watch adults brush themselves against the coral.

Dolphins May Use Coral and Sponges as Skin Care Items

The mammals rub on invertebrates, possibly to contact substances that might work like antibacterial creams

Male Svalbard walruses cluster by the shore. Each weighs an average of about 3,000 pounds and is up to ten feet long.

A Welcome Comeback for Norway's Walruses

A hunting ban has fostered the return of a nearly extinct species

Because of shore development and its heavily populated coastal cities, the Persian Gulf was one of the areas with the most light pollution.

First Global Atlas Reveals How Deep Artificial Light at Night Goes Underwater

Offshore development and coastal city lights negatively impact many marine species

Only in recent decades have researchers found that the fish have been gliding through the sea floors for hundreds of millions of years.

Rare Baby Ghost Shark Caught in New Zealand's Chatham Rise

There are about 52 known species of chimaera, half of which were discovered in the last two decades

Researchers attached green LED lights along the gillnet float line to keep unwanted marine animals from getting stuck.

Lit-Up Fishing Nets Dramatically Reduce Catch of Unwanted Sharks, Rays and Squid

Decorated nets entrapped fewer undesirable animals without significantly impacting the amount of target fish caught

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