Fossils indicate a variety of marine reptiles swam through ancient seas.

From Massive Eyes to Shark-Like Tails, Seven Amazing Adaptations That Helped Prehistoric Reptiles Thrive at Sea

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and the ability to birth live young

Researchers recently captured the first-ever confirmed video of the colossal squid in its natural habitat.

Check Out the First Confirmed Footage of the Colossal Squid, a Rare and Enigmatic Deep-Sea Species

Most of what we know about the elusive creature comes from research on its remains found in whale stomachs, but scientists just filmed a one-foot-long juvenile in the South Atlantic Ocean

An Aldabra giant tortoise stands tall. Males can weigh more than 500 pounds.

Thousands of Giant Tortoises Anchor a Thriving Ecosystem on Aldabra, a Remote Atoll in the Indian Ocean

The animals graze the vegetation into a picturesque turf, fertilize the soil with their dung and disperse seeds over large distances

Brown-headed cowbirds perch together on a branch in southern Arizona. The species is a brood parasite, sneaking their eggs into other birds’ nests in an attempt to steal parental care.

A Revealing Look Into the Surprisingly Tricky Sex Lives of Birds

Even among the most durable migratory bird pairings, sexual exclusivity is rarely part of their relationship

A species of remipede known from the Caicos Islands. The photograph was taken by a member of a multinational team looking for rare species. Remipedes are crustaceans that are close relatives to insects.

You Might Think of Shrimp as Bugs of the Sea. But a Remarkable Discovery Shows the Opposite: Bugs Are Actually Shrimp of the Land

A recent study suggests that insects branched out from crustaceans on the tree of life

Also known as by-the-wind sailors, the free-floating Velella velella are coating California beaches once again.

Odd-Looking Blue Creatures Are Washing Up in Large Groups on California’s Beaches Once Again

Strandings of these jellyfish-like animals, sometimes called “by-the-wind sailors,” usually mean spring is coming

The tusks of ancient elephants came in a variety of shapes and sizes.

Ten Exceptional Ancient Elephants, From Small Swimming Creatures to Shovel-Tusked Beasts

A wide variety of the exotic animals evolved on Earth over the past 60 million years

A newly described wasp species, Sirenobethylus charybdis, had a tail with paddles and trigger hairs that scientists say was used to catch and parasitize insects. The scale bar is 0.5 millimeters.

Ancient, Parasitic Wasp Used Its Rear End Like a Venus Flytrap to Catch Insects and Lay Its Eggs on Them, Study Suggests

Scientists say they’ve never seen anything like this “truly unique” species, which was found encased in amber

"Mr. Blobby" is a blobfish discovered in 2003 off the coast of New Zealand. The preserved specimen is now housed at the Australian Museum in Sydney.

Voters Crown the ‘World’s Ugliest Animal’ as New Zealand’s Fish of the Year

The blobfish is specially adapted to life in the deep ocean, but it looks like a shapeless blob when brought to the surface. It beat out the other candidates with its “unconventional beauty”

Before taking samples, students carefully examined the environment.

Nine New Tardigrade Species Discovered Thanks to the Efforts of Danish Schoolchildren

The budding scientists collected the tiny water bears in a massive citizen science project that involved almost 30,000 participants

An oarfish surfaced in Playa El Quemado, Mexico, earlier this month.

Cool Finds

See a Deep-Sea Oarfish Caught Alive on Video in a Rare Encounter on a Beach in Mexico

In Japanese folklore, appearances of these elusive marine creatures dubbed ‘doomsday fish’ are believed to foreshadow earthquakes, though scientists found no strong relationship between these events in a recent study

A pangolin emerges from an underground tunnel at night at Save Vietnam’s Wildlife, a group that runs a pangolin conservation program inside the Cuc Phuong National Park in Vietnam.

Will the Traditional Chinese Medicine Industry End the Pangolin?

The creature is being trafficked across Africa and Asia to fuel a steady demand for their scales, an ingredient in unproven remedies

Replicas of sheep and paintings are part of the exhibition's "exploded" diorama layout.

From Shears to Sweaters, an Experimental New Exhibition Examines the Long, Wooly Relationship Between Humans and Sheep

The Amsterdam show features an eclectic mix of wool garments, life-size sheep replicas and philosophical musings about the interconnectedness of the two species

An albino squirrel peeks out from within a tree.

Can a Small Town’s Protections for Albino Squirrels Inspire Other Cities to Guard Wildlife Against Cats?

Olney, Illinois, has taken steps to protect an iconic mammal from domesticated felines, setting a possible model for other places to follow

Scientists tested how the peacock mantis shrimp (Odontodactylus scyllarus) delivers its destructive blows without damaging its own body.

Mantis Shrimp Pack a Punch With the Force of a Bullet—and They Don’t Get Hurt. Here’s How

In a new study, scientists tested the complex layers in the animal’s clubs that serve as mighty shields to absorb the shock of the impact

The swell shark pup at Louisiana's Shreveport Aquarium

Shark Pup Mysteriously Hatches in Aquarium Tank With Only Females. How Could This Birth Happen?

Experts say the case is either a rare form of asexual reproduction or an instance of (very) delayed fertilization

A tiger keelback feeds on poisonous toads and stores the poison for its own use.

Six Clever Snakes to Celebrate as We Slither Into the Lunar New Year

These fascinating serpents embody acclaimed qualities including cunning and intelligence

The head of Bathynomus vaderi, a newly described species of giant isopod found in Southeast Asian waters

Researchers Identified a New ‘Supergiant’ Crustacean With 14 Legs—and They Named It After Darth Vader

In recent years, the deep-sea giant isopod has also become a seafood delicacy in Vietnam, where it was discovered

A new crayfish species called Cherax pulverulentus has a bright blue color.

A New Crayfish Species Was Hiding in Plain Sight Among Common Aquarium Pets, Researchers Find

Native to Indonesian New Guinea, the crustacean comes in two color forms and is a popular pet choice in Europe, Japan, the United States and Indonesia

A baby pygmy hippo was born at Virginia's Metro Richmond Zoo in December in another viral birth for the endangered species.

A Virginia Zoo Now Has Its Own Moo Deng—See the ‘Adorable’ Baby Pygmy Hippo Born in December

The young female made her public debut this week, and the Metro Richmond Zoo is asking fans to vote on her name—a choice between Poppy and Hammie Mae

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