18 November 2014, 11:26 AM ET
Koalas are an Australian icon that have a keen sense of smell, eat mainly eucalyptus leaves and have fingerprints like humans!
18 November 2014, 07:06 AM ET
Even though deadly spider bites are regular fodder for scare stories, spider experts say it's actually quite rare for anyone to suffer serious injuries from the world's deadliest spiders.
17 November 2014, 03:04 PM ET
The mystery surrounding a gruesome disease that affects starfish on the Pacific coast might finally be put to rest.
16 November 2014, 09:20 AM ET
An ancient mammoth preserved in permafrost could yield the best hoping of cloning the extinct beast yet.
16 November 2014, 09:11 AM ET
An ancient mammoth preserved in permafrost could be the best chance of cloning the extinct beast yet.
14 November 2014, 06:32 PM ET
These solitary spiders like to hide in dark places in the house. Their bite is very venomous.
14 November 2014, 06:53 AM ET
If you're bored with all the vertebrates in your wildlife-cam media diet, the Monterey Bay Aquarium in California is now streaming mesmerizing live footage of its jellyfish.
13 November 2014, 11:00 PM ET
Moose are the largest members of the deer family. Their antlers get shed every winter, and new ones grow back in spring.
13 November 2014, 02:00 PM ET
How long can a fish survive out of water? Long enough, it seems, for a 120-foot (37 meter) tube to vacuum up the fish and shoot it upriver, closer to the salmon's spawning grounds, research shows.
13 November 2014, 12:00 PM ET
Male chimpanzees who are meaner to females tend to sire more offspring, which could have implications for the roots of gender violence in humans.
12 November 2014, 08:29 PM ET
These ocean-dwelling mammals evolved from ancestors that lived on land!
12 November 2014, 04:13 PM ET
A new species of gecko has been found living among the crumbling remains of an old French fort in northern Madagascar. The gecko, nocturnal by nature, is a master of camouflage and seamlessly blends in with the surrounding rocks and fortress ruins.
12 November 2014, 08:44 AM ET
Chimpanzee culture is not nearly as developed as human culture, and a new study suggests that the reason is not cognitive capability, but motivation to learn.
12 November 2014, 07:15 AM ET
The female mud snake found May 28 in Georgia had cloudy eyes and patches of white, thickened scales. A strange, dark-gray material covered the inside of her mouth, and the skin on the front of her face had peeled away, leaving behind an angry red mess.
12 November 2014, 07:10 AM ET
A mysterious fungus is sickening snakes in the American East and Midwest. The illness, called snake fungal disease, causes a variety of symptoms, including scabs and crusty scales, cloudy eyes and swollen faces.
11 November 2014, 10:17 PM ET
Huntsman spiders are long-legged predators that hunt down their prey. One species of huntsman spider has a leg span of 12 inches — or as big as a dinner plate.
10 November 2014, 10:03 PM ET
Every few months, almost like clockwork, a media hype about these arachnids surfaces in the press. But we rarely find a balanced story about deadly spiders. Just how toxic are they, really?
10 November 2014, 03:00 PM ET
A new study has revealed the genetic changes that led cats to become domesticated, and many are related to reward seeking and fear conditioning.
09 November 2014, 06:15 PM ET
Despite their recognition as an endangered species and the supposed protection that brings, pangolin are now the most trafficked wild mammal species in the world.
08 November 2014, 06:10 AM ET
The bizarre, convoluted nasal passages of tanklike armored dinosaurs may have helped the animals cool the blood headed to their tiny brains, preventing overheating.
07 November 2014, 03:49 PM ET
The fossilized remains of a mare and her tiny, unborn foal tell researchers that reproduction in ancient horses wasn't too different from that of modern horses, new research finds.
07 November 2014, 09:49 AM ET
Flaming sex involves make-up, elaborate group dances and seasonal monogamy.
07 November 2014, 07:40 AM ET
The young woolly mammoth's brain is the only such practically intact specimen known, revealing even the folds and vessels to scientists. The well-preserved remains of the ice age beast were discovered in the Siberian permafrost.
07 November 2014, 07:37 AM ET
Take a look at images of a 39,000-year-old woolly mammoth with a preserved brain discovered in the Siberian permafrost.
06 November 2014, 11:21 PM ET
Sanctuaries are the final stop for many of the most exotic abandoned animals.
06 November 2014, 11:05 PM ET
Every abandoned tiger needs a home, but not all sanctuaries are created the same.
06 November 2014, 05:40 PM ET
Over 400 million years of evolution have contributed to making insects the most diverse group of animals in the world, a new study finds.
06 November 2014, 05:37 PM ET
With over 400 million years of evolution under their belts, it's no wonder that insects are the most diverse group of animals on Earth.
06 November 2014, 02:48 PM ET
Just like Navy engineers who jam the sonar of enemy ships, bats can jam the signals of other bats to ward off competition for food, a new study finds.
06 November 2014, 02:47 PM ET
Mexican free-tailed bats use echolocation to hunt, but they also emit jamming signals to fend off competitors. Mexican free-tailed bats use echolocation to hunt, but they also emit jamming signals to fend off competitors.
06 November 2014, 01:57 PM ET
An orphaned sea otter pup, just a week old and underweight, was rescued from a beach in California last month. Now, the camera-friendly creature is starting over in the Midwest, with 24-hour care at Chicago's Shedd Aquarium.
06 November 2014, 12:59 PM ET
Because bees are big business in the U.S., collecting and sharing data about the insect is important to address the decline in bee populations.