12 May 2015, 06:20 AM ET
Chicks with dino-snouts? With a little molecular tinkering, for the first time scientists have created chicken embryos with broad, Velociraptor-like muzzles in the place of their beaks. The results shed new light on how the bird beak evolved.
12 May 2015, 06:19 AM ET
Scientists have created chicken embryos with dinosaur-like snouts, revealing the genetic tweaks that may have led to the development of the bird beak.
07 May 2015, 03:15 PM ET
The shiny, fossilized brains of two ancient sea-monsterlike creatures are helping researchers understand how the ancestors of modern-day arthropods, such as scorpions and lobsters, evolved, as shown in a new study.
07 May 2015, 08:32 AM ET
A sinkhole in Madagascar contained hundreds of fossils of extinct primates, hippos, rodents and the island's largest predatory cat.
07 May 2015, 06:54 AM ET
A newly translated report reveals the dodo bird was not the only wacky animal inhabitant of the island of Mauritius: Bad-tempered parrots, wart-faced pigeons and several other now-extinct but noteworthy indigenous animals called this land home.
07 May 2015, 06:45 AM ET
A massive whale's nerves can unfold and recoil like a bungee cord, explaining how they can balloon their mouths while feeding.
07 May 2015, 12:11 AM ET
The ivory trade is taking a hit as Chinese social media ramps up to protect elephants.
06 May 2015, 11:35 PM ET
In China, social media is changing ivory's social status.
06 May 2015, 06:00 PM ET
Every spring, red-sided garter snakes leave their hibernation burrows to engage in a frenzied jumble of mating. But doing the deed is no easy feat for males.
06 May 2015, 03:04 PM ET
The Siberian tiger is a rare beauty, best seen from not too close.
06 May 2015, 07:09 AM ET
A sinkhole in Madagascar contained hundreds of fossils of extinct primates, hippos, rodents and the island's largest predatory cat
06 May 2015, 12:01 AM ET
Scientists recently took a close look at teeth of fossilized penis worms and discovered a new species.
02 May 2015, 03:16 AM ET
Horses are ungulates — mammals with hooves. There are more than 400 different breeds.
01 May 2015, 04:48 PM ET
Gentoo penguins seem to gather in colonies, and their large piles of poop help melt the snow and provide "nurseries" for their young.
01 May 2015, 03:20 PM ET
Penguins poop on the ice to melt it, enabling them to create rocky breeding coves.
01 May 2015, 09:57 AM ET
It's possible that thousands of ivory objects — from kitschy trinkets to carved tusks — worth more than $15 million are being traded each year on Craigslist in the United States, according to a new report.
01 May 2015, 06:55 AM ET
The planet is crawling with critters, but scientists are meeting some of them only just now.
30 April 2015, 01:45 PM ET
Bat wings have built-in systems to rapidly detect airflow changes, enabling these flying mammals to perform aerial acrobatics.
30 April 2015, 07:34 AM ET
Some scorpions are able to spray their venom, an ability they use defensively to try to temporarily disable predators, allowing the stinging arachnids to escape the jaws of death, a new study suggests.
29 April 2015, 06:59 PM ET
Researchers produced venom-spraying behavior in Parabuthus transvaalicus scorpions by simultaneously grabbing its tail and blowing a puff of air on the arachnid with a compressed air duster.
29 April 2015, 02:00 PM ET
Rare, 7-million-year-old fossils of two extinct pygmy sperm whales are helping researchers learn about the evolution of the ocean's largest toothed whale, a new study finds.
29 April 2015, 01:02 PM ET
A little feathered dinosaur with batlike wings likely flapped and glided, not so gracefully, through the Jurassic forests of what is now northeastern China, say paleontologists who analyzed the animal's bones.
29 April 2015, 01:00 PM ET
The first of its kind, this wacky dinosaur sports bat-like wings with membranous tissue to help it glide through the Jurassic forests of what is now China some 160 million years ago.
28 April 2015, 11:11 PM ET
Guinea pigs are a domesticated species of rodent that are popular as pets — and food. These animals no longer exist in the wild.
28 April 2015, 07:33 PM ET
Archaeopteryx was an evolutionary link between dinosaurs and birds.
27 April 2015, 05:06 PM ET
The U.K. charity International Cat Care reached out to veterinary specialists after receiving surprising complaints from cat owners: Their feline companions were apparently having seizures in response to high-pitched sounds.
27 April 2015, 11:20 AM ET
The newfound dinosaur species Chilesaurus diegosuarezi may be a cousin of the notorious Tyrannosaurus rex, but it didn't eat meat, a new study shows.
27 April 2015, 11:07 AM ET
A 7-year-old boy spotted fossils of a wacky dinosaur related to T. rex that didn't share the infamous carnivore's appetite for meat, and instead the 9.8-foot-long (9 meters) dinosaur munched on plants
27 April 2015, 06:58 AM ET
Iridescent creatures — such as dragonflies, catfish and boa constrictors — often dazzle onlookers with their shimmering colors. These alluring, luminescent hues may be key to an animal's survival, helping it to confuse and escape from predators.
27 April 2015, 06:56 AM ET
It's unclear why so many species sport iridescent colors, but a new study suggests that these shimmering shades may help animals confuse and escape predators.
24 April 2015, 07:59 PM ET
Pigs are mammals with stocky bodies, flat snouts, small eyes and large ears. They are highly intelligent, social animals, and are found all over the world.
24 April 2015, 11:39 AM ET
A juvenile male pocket shark has been identified from the Gulf of Mexico offshore Louisiana. The tiny shark has an orifice above its fin that may secrete either mate-attracting pheromones or a luminous substance.