The harrowing story of how the dog managed to finish the race with his adopted companions will melt your heart.
New fossil reminds us of the bizarre life that once inhabited our planet.
From 11:57 p.m. to midnight each night, sheep have been stampeding through Times Square.
Metallic noise, captured from the deepest point on Earth's surface, likely belongs to a species of baleen whale, scientists say.
Video settles who is truly atop the ocean food chain.
Thousands of people have been walking over the fossil for decades without knowing it.
Illacme tobini is the second leggiest animal species on the planet — but that's not it's only odd feature.
A newly discovered hybrid of aurochs and ice age bison has been affectionately called the 'Higgs bison' due to its elusive nature.
Why are these crocodiles orange? One grotesque theory about their coloration might shock you.
They don't have a queen or any larvae, but these resilient insects are still trying to eke out an existence.
Closest living relative of Arktocara yakataga can only be found in rivers in South Asia.
Video could finally offer insight into the mysteries about how sharks get their shuteye.
Nile crocodiles are known for being maneaters, and now they've been accidentally introduced to Florida.
Bizarre fish has evolved fins like no other and is capable of walking like a land animal.
How this little prince grew into the tyrant king of the dinosaur world.
Who or what is making the sound remains a mystery, but it may be a 'dinner bell' signaling feeding time for deep sea creatures.
Otherworldly caves naturally lit by the eerie gleam of glowworms are a sight to behold.
The breeding of these extremely rare, enormous insects is one of the most inspiring stories in the history of conservation.
The surprising find shows just how much there is to learn about the biodiversity of southern Oregon's mountainous region.
A humpback whale fell victim to a swarm of sharks, which are usually known to hunt much smaller prey.
Phylliroe is a type of nudibranch, or sea slug, that has evolved to look and swim like a fish. And that's not the only weird thing about it.
After decades of testing, agency says 50 remaining chimps will be retired to a sanctuary.
Could virtual reality change our relationship with the natural world?
Handmade 'cuddlebatz' wraps swaddle distressed baby bats and make you forget all about vampires.
Fossil reveals plumage patterns of these ancient beasts, further establishing an evolutionary link between dinosaurs and birds.
Long feared extinct, the extremely rare Omura's whale was recorded by a team of biologists off the coast of Madagascar.
They might make for terrifying adults, but giant squid are actually kind of cute when they're babies.
These are the best preserved specimens of this extinct Arctic lion ever found.
Scientists aren't sure yet just how widespread these beautiful, glowing hawksbill turtles are.
The surprising discoveries were made by a CSIRO research team conducting routine surveys off the Australian coast.
A flamboyant cousin of the fearsome Velociraptor was covered in layers of showy feathers from head to tail.
The beautiful, predatory moonfish can warm its own body, just like mammals and birds.
The Ili pika, an animal sometimes referred to as the 'magic rabbit,' is more endangered than the panda.
Game cameras give us a view into what happens in the woods when the sun goes down.
Santa's not the only one who gets to hang out with these interesting animals.
Hiding under everyone's nose in the most populous city in the U.S.A., a beautiful new frog species has been discovered.
Jumbo squid, also known as "red devils," have been known to attack divers before. But a submarine? Watch the nightmarish Greenpeace video here.
Artist Iori Tomita explores the natural art of the skeletal system by exploiting clever chemistry tricks. See how it's done.
The Aldabra banded snail was believed to have been driven to extinction by climate change, but researchers have found a few stragglers.
Thanks to doggie wheel carts, these canines are able to get around without the use of their back legs. Watch them fetch, play and cavort!
This monster of a bug was recently discovered in a remote area of China's Sichuan province.
Watch what happens when an eager young lion cub gets in too deep (literally) while dining on a freshly killed buffalo.
More than 4,000 deadly snakes call this tiny 110-acre island home, including one species with venom that can 'melt human flesh.'
Dramatic video shows the moment Jeremy Wade swims up to the 20-foot, 200 pound giant snake.
Climate change could affect our food supply at the same time that global population is increasing.
These cool pygmy animal species show you don't have to be big to be great.
The lack of predators reduces the instinct to flee, according to new research.
The plan to drill in the Arctic National Wildlife Refuge is hotly contested between oil companies, Alaskans and conservation groups.
The young female set a new speed record for her species.
Enormous holes in sea ice called polynyas are explained with help of robot floats, satellites and tech-equipped seals.