Mustang horses roam freely across the western United States and are a symbol of pioneering spirit, but they aren't quite wild.
Find out everything there is to know about wildlife and stay updated on the latest wildlife news with the comprehensive articles, interactive features and wildlife pictures at LiveScience.com. Learn more about wildlife as scientists continue to make amazing discoveries.
The animal kingdom is filled with stretchy mouths, from hamster cheeks to blue whale pleats, but which animal has the stretchiest mouth of all?
A months-long rescue operation transported the last of nine stranded giraffes to their new home in a mainland sanctuary.
Coyotes originated in prairies and deserts, but are now right at home in big cities across North America. How did this naturally shy creature learn to thrive in crowded urban landscapes?
Electric eels have been observed in the Amazon hunting in groups for the first time. By working together, they can send fish flying with a supercharged jolt of electricity.
Scientists recently documented never-before-seen mating behavior in wrinkle-faced bats, in which males pull a furry flap of skin over their faces.
Scientists have discovered that platypus fur glows under ultraviolet light, in the first example of biofluorescence in egg-laying mammals.
Filmmakers spent three years following pandas in China's Qinling Mountains, capturing never-before-seen footage of males competing over females.
Tasmanian devils have been reintroduced to mainland Australia, where they haven't been seen in the wild for millennia.
Who will be the chonkiest bear of all? As bears in Alaska's Katmai National Park bulk up for winter, rangers invite the public to select one thicc beauty as the favored fattest.
After two dead giraffes were discovered in a South African nature reserve, scientists determined that the animals had been struck by lightning.
How much force must a penguin apply in order to blast a flying poop projectile, and how far can it travel? Fortunately for us all, scientists now have answers.
When an adult male gorilla in a South African zoo developed breathing problems, wildlife specialists diagnosed the ailment with CT scans.
A tiny and very tubby baby pygmy hippo that was recently born at the San Diego Zoo is the zoo's first successful pygmy hippo birth in more than 30 years.
The voice of a Chilean wild cat called a güiña, the smallest wild cat in the Western Hemisphere, was recently recorded for the first time — and it sounds like a cheeping bird.
Photos of allegedly "drunken elephants" quickly went viral on Twitter. But the elephants weren't drunk, they were just resting, officials said.
An undercover animatronic gorilla captured astonishing footage of wild mountain gorillas singing while they ate.