09 November 2015, 11:04 AM ET
See amazing images of great white sharks breaching off South Africa, launching their 3-ton bodies from the water to grab seals.
09 November 2015, 09:19 AM ET
Humans aren't the only ones stressed out by city life. Feral urban bees' immune systems work harder to fend off more intense attacks from deadly pathogens.
09 November 2015, 07:19 AM ET
A mishmash of ancient amphibians and reptiles once swam and hunted prey in an ancient Brazilian tropical lake, a new study finds.
06 November 2015, 03:04 PM ET
Can these tiny turtles help prevent their species' extinctions?
05 November 2015, 11:38 PM ET
Crows are large black birds that are known for their intelligence and adaptability.
05 November 2015, 02:00 PM ET
An elusive snow leopard was recently seen and collared in Kyrgyzstan — a first for the landlocked, mountainous country.
05 November 2015, 08:01 AM ET
The skeleton of a heavily feathered, ostrichlike dinosaur has "unparalleled" fossilized feathers and skin — anatomical features that aren't usually preserved in dinosaur remains, a new study reports.
05 November 2015, 07:06 AM ET
Since the 1970s, it has been suggested that kangaroos don’t fart — or rather, the (ahem!) gas they emit contains very little, if any, methane. But now, new research suggests this isn’t true.
05 November 2015, 07:05 AM ET
Methane gas fermented in the guts of farm animals contribute up to 26 percent of U.S. methane emissions.
04 November 2015, 12:43 PM ET
Monkeys that are revolted by often disease-carrying things such as poop suggest that disgust drives cleanliness - and health.
04 November 2015, 07:22 AM ET
Bottlenose dolphins swimming in waters affected by the Deepwater Horizon oil spill are dying earlier and birthing fewer calves than dolphins living in other areas, a new study shows.
03 November 2015, 03:26 PM ET
Sixty-six million years ago, a giant raptor with feathered arms chased prey around the ancient South Dakotan landscape, a new study finds.
03 November 2015, 03:09 PM ET
The man-made fires in Borneo have hit orangutans hard, displacing them from their homes and exposing the animals to enough smoke to make them susceptible to respiratory problems.
03 November 2015, 07:01 AM ET
Workers in wasp nests sometimes kill their queens, even though these egg-laying wasps are also their mothers. Now, researchers think they might know why such murders take place.
02 November 2015, 10:50 PM ET
Alpacas are domesticated versions of a South American ruminant called the vicuña. There are no alpacas in the wild.
02 November 2015, 03:45 PM ET
An itsy-bitsy mollusk in Borneo is the new record holder for the world's smallest known snail, a new study finds.
02 November 2015, 11:40 AM ET
Sixty-six million years ago, a tyrannosaur may have sunk its sharp and serrated teeth into the bones of another tyrannosaur, new research suggests.
02 November 2015, 06:53 AM ET
A group of ancient "sea monsters" is caught up in a centuries-old case of mistaken identity, according to new research.
31 October 2015, 12:29 AM ET
The masked bandits of the animal kingdom they live in a wide range of climates and habitats.
30 October 2015, 11:54 AM ET
They're the soil-builders that allow Africa's arid savannas to be lush grasslands. What do they do inside their huge mounds - and how does a collective mind allow them to do it?
30 October 2015, 12:43 AM ET
Wombats are small marsupials that look like a cross between a bear, a pig and a gopher.
29 October 2015, 02:15 PM ET
Scientists have uncovered the fossils of an 11.6-million-year-old primate that lived in what is now a province of Barcelona, Spain, where it walked on tree branches and ate fruit meals. Here's a look at the newbie and the site where it was discovered.
29 October 2015, 02:11 PM ET
The fossil of a small primate with "goggle" eyes that strode atop tree branches, snagging snacks of fruit, suggests the last common ancestor of all apes might have been less like humans' closest living relatives than often thought, researchers say.
29 October 2015, 12:12 PM ET
A teeny-tiny fossilized bird skeleton is helping researchers understand the explosive rate at which birds diversified after the dinosaur age, new research shows.
29 October 2015, 05:24 AM ET
Here are six creepy critters to contemplate as you bob for apples, carve pumpkins and eat copious amounts of candy.
29 October 2015, 02:04 AM ET
Salamanders are amphibians that look like a cross between a frog and a lizard. Species include newts, mudpuppies and hellbenders.
29 October 2015, 01:10 AM ET
Bats aren't always creepy — they can be cute and fuzzy, too.
28 October 2015, 02:39 PM ET
Electric eels have a shocking way of demobilizing their dinner.
28 October 2015, 02:36 PM ET
Scientists record sharp voltage increases as feeding electric eels curl their bodies. These electrical discharge immobilize prey by short-circuiting their neuromuscular system, causing extreme muscle fatigue.
27 October 2015, 03:36 PM ET
If an ancient amphibian lost a limb or a tail, it could simply sprout a new one, according to researchers who found fossil evidence of limb regeneration dating back 290 million years.
27 October 2015, 12:25 AM ET
The dingo is a wild, medium-size canine that has roamed Australia for thousands of years.
26 October 2015, 04:43 PM ET
Nearly a million years ago, a cave hyena could have taken down a 5-year-old mastodon weighing more than a ton. And in packs, the predators may have been equipped to demolish a 9-year-old mastodon weighing a hefty 2 tons.