Whether they crawl, fly, swim, slither, walk, run or pounce, wild animals rely on their instincts. Read about all kinds of wild animals, mammals, birds, fish, insects, reptiles and amphibians.
New Species of Glass Frog Is So Transparent You Can See Its Heart
Toxic Caterpillars Invade London
What the Cluck? The Case of the Gender-changing Hen
Cuttlefish, Masters of Camouflage, Have Newly Discovered Super Power
Your Bed Has More Poop Than a Chimp's
Sea Slugs Go Solar by Stealing From Algae
Here's Why You Shouldn't Eat a Box Turtle in the Wild
Spontaneous sex reversal in chickens is pretty rare, but it does happen. Find out how Miss Lucille became Mr. Lucille.
By Alia Hoyt May 23, 2018
Think your bed is cleaner than a chimp's? Researchers at North Carolina State University set out to find the answer.
By Kristen Hall-Geisler May 22, 2018
Koala populations in Australia are in decline, in part due to the ravages of chlamydia, a sexually transmitted bacterial infection.
By Carrie Tatro May 21, 2018
Oak processionary moth caterpillars can trigger allergic reactions causing everything from eye irritation to anaphylactic shock.
By Laurie L. Dove May 17, 2018
By incorporating algae into their bodies, these beautiful sea slugs become one of the few animals with the photosynthetic ability of a plant.
By Amanda Onion May 10, 2018
Snails can't pick and choose their shells like hermit crabs can. In fact, eviction means death. So how do those hard shells form over snails?
By Mark Mancini May 3, 2018
So-called "exploding ants" protect their colony and its territory by rupturing their bodies and sending out a sticky stream of poisonous gel.
By John Perritano Apr 27, 2018
Scientists have identified a substance responsible for breaking down pesticides in bees, which will help them come up with a bee-friendlier bug spray.
By Laurie L. Dove Apr 18, 2018
The pelican spider would just as soon eat another spider as look at one.
By Christopher Hassiotis Apr 16, 2018
It pays to be brainy when you're a ring-tailed lemur.
By Jesslyn Shields Apr 6, 2018
Male brown widow spiders stubbornly court the oldest females they can find, though younger females are more fertile and far less dangerous.
By Jesslyn Shields Mar 28, 2018
Most of the scientific attention to birdsong has been paid to the male of the species. But many female birds sing too — and scientists are starting to understand how important it is to study them as well.
By Alia Hoyt Mar 27, 2018
The platypus may look a bit absurd and bizarre, but its milk might hold the secret to fighting antibiotic-resistant bacteria.
By Jesslyn Shields Mar 22, 2018
Nutria are jumbo-sized rodents that reproduce and eat at a jumbo-sized pace.
By Jesslyn Shields Feb 27, 2018
A species of termite-hunting sub-Saharan ants tend to their wounded.
By John Perritano Feb 26, 2018
Cuttlefish can avoid detection by holding a disguise for long periods of time.
By Amanda Onion Feb 20, 2018
Urban coyotes have a fierce and formidable reputation as midnight predators, but coexistence with humans is possible.
By Carrie Tatro Feb 8, 2018
Naked mole rats are famous for their longevity, but they also don't age like the rest of us do.
By Jesslyn Shields Feb 5, 2018
To boil or not to boil ... that is the question.
By John Donovan Jan 17, 2018
Does your parakeet understand the cardinal chirping outside its window? Can a pigeon's noises mean anything to a crow? Yes, it can.
By Mark Mancini Jan 12, 2018
The Gulf corvina is the loudest fish on the planet, helping lead to its overfishing and endangerment.
By Jesslyn Shields Jan 11, 2018
Certain urban-dwelling bird species use cigarette butts in building their nests.
By Carrie Tatro Jan 8, 2018
Insects are crucial to the functioning of every ecosystem on the planet. Now they're disappearing, and nobody's sure why.
By Jesslyn Shields Jan 4, 2018
Some people mistakenly believe that if chimps are socialized from an early age, they're not a threat to humans. But these five families found out the hard way that chimps will always be chimps.
By Nathan Chandler
Crocodiles are known to eat just about anything. But sharks? A scientific team found evidence that they've chowed down on those predators too.
By Mark Mancini Nov 2, 2017
The Duckmaster Rules the Roost at the Peabody Hotel
Three Serial Killers of Gay Men Still on the Loose