29 January 2015, 06:35 PM ET
Sarah studies apes, monkeys, humans and other primates to understand how cooperation has evolved over time.
29 January 2015, 04:20 PM ET
Little is known about how baleen whales process low-frequency sounds. Now, researchers have found that baleen whales have specialized skulls that can capture the energy of low frequencies and direct it toward their ear bones to hear.
29 January 2015, 02:00 PM ET
Baby chicks seem to count from left to right just like humans, suggesting the mental representation of the number line is millions of years old.
29 January 2015, 01:06 PM ET
The elusive and rare Sierra Nevada red fox has been spotted in Yosemite National Park for the first time in nearly a century.
29 January 2015, 06:56 AM ET
Once mistaken for another species of owl, the golden-eyed desert tawny owl is finally getting its due, thanks to a new study.
28 January 2015, 02:04 PM ET
Studying seasonality and the ebb and flow of resources helps this researcher predict animal population growth and decline.
28 January 2015, 10:50 AM ET
Experiments with baby chickens suggest they perceive lower values as lying to the left of higher values, similar to how humans use a number-line. If true, this may date back to a common ancestor of birds and people.
28 January 2015, 08:33 AM ET
An African golden cat was caught on camera hunting a group of red colobus monkeys in Uganda.
28 January 2015, 07:07 AM ET
Researchers have discovered five new species of tiny, shimmering spiders with glittery bellies.
28 January 2015, 01:25 AM ET
Researchers uses quantitative methods to understand how and why species such as parrots develop complex social societies and how those social relationships compare to other animals.
27 January 2015, 07:01 PM ET
What's the best way to keep an insect from exploding in a powerful vacuum? Wrap it in a tiny spacesuit, of course.
27 January 2015, 07:01 PM ET
A scanning electron microscope must look at objects in vacuum in order to work. To study live insects, scientists dipped ants and spider into diluted "tiny spacesuit" surfactant.
27 January 2015, 05:15 PM ET
The time has come to end home delivery of shark fin soup in the United States.
27 January 2015, 04:49 PM ET
Pandas, long at risk, are facing the loss of the bamboo that dominates their diet.
27 January 2015, 11:04 AM ET
Researchers have discovered the oldest known snake fossils, according to a new study.
26 January 2015, 10:55 PM ET
Flying reptiles ruled the skies for millions of years.
26 January 2015, 03:42 PM ET
What would the world look like without freshwater fish?
26 January 2015, 03:13 PM ET
Fish are getting a "voice," and taking it to a global stage.
26 January 2015, 01:00 PM ET
You know the feeling: the dryness in the mouth, the stickiness in the throat and the creeping salivation — thirst.
26 January 2015, 12:49 PM ET
Scientists have found a way to switch a mouse’s sense of thirst on or off by shining laser light on the animals’ brains.
23 January 2015, 07:42 PM ET
This turkey-sized dinosaur looked very different from its 'Jurassic Park' depiction.
23 January 2015, 07:25 PM ET
Marine ecologist Paul Sikkel explains why corals are important and how marine life thrives in protected areas.
23 January 2015, 02:03 PM ET
At least two species of cone snail have turned insulin into an underwater weapon, a new study finds. When these stealthy aquatic snails approach their prey, they release insulin, a hormone that can cause blood sugar levels to plummet.
23 January 2015, 01:58 PM ET
Fish-hunting Conus geographus and Conus tulipa are caught on camera attempting to capture prey by lowering the victim’s blood sugar, retarding their ability to flee.
23 January 2015, 10:17 AM ET
The Whillans Ice Stream Subglacial Access Research Drilling (WISSARD) project drilled through the Ross Ice Shelf and found fish living 2400 feet beneath.
22 January 2015, 04:50 PM ET
Researchers were startled to find fish, crustaceans and jellyfish hidden beneath the Ross Ice Shelf, in one of the world's most extreme ecosystems.
22 January 2015, 04:47 PM ET
Photos of fish, amphipods and other creatures living under Antarctica's Ross Ice Shelf.
22 January 2015, 12:34 PM ET
A bizarre, freaky-looking shark with rows of needle-sharp teeth and a body like an eel's was caught by a fisherman in Australia. The odd creature is a rare type of shark known as a frilled shark, and is sometimes called a fish "fossil" because it dates ba
21 January 2015, 02:30 PM ET
The fossil of a prehistoric 9-foot-long (2.7 meters) carnivorous reptile that had sharp, serrated teeth is helping researchers fill out the early branches of the reptile family tree, according to a new study.
21 January 2015, 06:57 AM ET
At the Piedras Blancas Beach in north-central California, a northern elephant seal rookery has become an important sanctuary for this once-endangered species. Check out these incredible photos of northern elephant seals in the wild.
17 January 2015, 10:33 AM ET
The fossilized remains of a small aquatic reptile surrounded by six babies suggest that the extinct animal was caring for the little ones when they died, a new study finds.
15 January 2015, 02:00 PM ET
Every year, flocks of geese migrate hundreds of miles over the Himalayas, from their breeding grounds in Mongolia to Southeastern Tibet or India for the winter. Now, a new study reveals how these maverick aviators fly so far in the thin mountain air.
15 January 2015, 12:00 PM ET
Female sea turtles, known to swim thousands of miles before returning to their birthplace to lay eggs, find their way home by relying on unique magnetic signatures along the coast, a new study finds.
14 January 2015, 06:58 AM ET
A chance discovery in a backyard reveals a new species of scorpion, one of the oldest, which could have walked out of its watery habitat onto land.
14 January 2015, 06:57 AM ET
Scientists have long struggled to explain why zebras have dark stripes. Now, a new study suggests that the stripes help these grazers stay cool in the midday equatorial heat.
14 January 2015, 06:55 AM ET
Plains zebra in southern regions of Africa tend to have thinner, less defined stripes than plains zebra in the northern regions of their range. Thicker stripes may help zebra cool their bodies, a new study suggests.