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Weird Animals

A computer illustration details dog roundworm (Toxocara canis). Humans can pick up the parasite when coming into contact with infected soil or feces.

How Worm-Inspired Treatments Are Inching Their Way Toward the Clinic

Infection by certain wrigglers may reduce inflammation and fight obesity and diabetes. Scientists are working to turn the findings into therapies

An artistic rendering of an early vertebrate being attacked by a sea-scorpion in dark waters

Our Teeth May Descend From Sensitive Bumps on Prehistoric Fish Armor, New Research Finds

Hundreds of millions of years ago, fish had sensory features on their exoskeletons that contained dentine, the material that makes our teeth sensitive today

The newly described octopus, Opisthoteuthis carnarvonensis, has red tentacles.

A New, Shape-Shifting ‘Flapjack’ Octopus Has Been Discovered in the Deep Sea Off the Coast of Australia

The tiny Carnarvon flapjack octopus is the latest of ten species described by Australian scientists after a 2022 research trip

The healthy adult female was covered in curvy circles, similar to leopard spots.

This Eye-Catching Rattlesnake Found in Arizona Has Unusual ‘Leopard Spots,’ Likely From a Genetic Mutation

Snake wranglers safely relocated the healthy, female western diamondback from a backyard in Scottsdale, but they say the find is a first in their experience

The female elk was spotted grazing and lounging around Estes Park, Colorado.

‘1 Out of Every 100,000’: This Rare Piebald Elk Is Turning Heads in Colorado With Her Unusually Splotchy Fur

The female ungulate has white patches on her face and body, likely because of an uncommon genetic condition that affects pigmentation

Rangers witnessed a captive Powelliphanta augusta snail lay an egg from its neck, and they managed to catch it on video for the first time ever.

Watch a Giant Snail Lay an Egg From a Pore in Its Neck in First-Ever Footage Captured in New Zealand

Conservation rangers took a video of an endangered, captive snail laying a large egg, revealing insight into the creature’s reproductive process

Sea cucumbers come in a multitude of colors.

Welcome to the Weird and Wondrous World of Sea Cucumbers

These spiny or slimy ocean creatures display an astonishing diversity of appearances, behaviors and lifestyles—and many are increasingly threatened

During the squid run, tens of thousands of opalescent squids (Doryteuthis opalescens) gather together.

In Order to Unravel the Many Mysteries of Squids, Scientists Dive Into Their Mating Frenzies

Marine biologists hope to find out more about a creature that is vital to a healthy ecosystem and the state’s fishery

A Haast’s eagle attacks a moa pair.

Why Have Birds Never Gotten as Big as T. Rex?

Even the most massive birds have never reached the sizes of their dinosaur relatives

New research suggests that land-based echidnas descended from semi-aquatic mammals. 

A Single Prehistoric Bone Might Rewrite the History of the World’s Strangest Mammals

Analysis of the fossil suggests that the only two egg-laying mammals, platypuses and land-based echidnas, both descended from a semi-aquatic creature

The 113-million-year-old fossil of Vulcanidris cratensis is the first known hell ant preserved in rock rather than amber.

Scientists Discover the Oldest Known Ant Fossil, a 113-Million-Year-Old ‘Hell Ant’ Preserved in Rock in Brazil

The odd-looking specimen with scythe-like jaws indicates that early ants were spread widely across the globe while dinosaurs still roamed

A "bone collector" caterpillar sits in a cobweb with a spider and its egg sac. The newly discovered moth species disguises itself as a larva by covering itself with insect parts.

Researchers Discover a Rare, Carnivorous Caterpillar That Wears Dead Insect Parts to Fool Spiders

The species, dubbed the “bone collector,” belongs to an ancient lineage of moths older than the Hawaiian island of Oahu, which is the only place it’s known to live today

A variety of marine creatures and unique features can be found in the deep sea off Norway, including the dumbo octopus, colorful anemones and venting chimneys.

As Norway Considers Deep-Sea Mining, a Rich History of Ocean Conservation Decisions May Inform How the Country Acts

In the past, scientists, industry and government have worked together in surprising, tense and fruitful ways

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

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