24 December 2014, 11:33 PM ET
The term "daddy longlegs" can refer to three different types of bugs, and only one of them is a spider.
23 December 2014, 11:50 PM ET
Brachiosaurus stood taller than most dinosaurs.
23 December 2014, 11:28 PM ET
There are more than 800 species of these hairy, nocturnal archnids.
23 December 2014, 11:01 AM ET
Fossilized rod and cone cells — the kinds that help people see — have been discovered for the first time, researchers say.
22 December 2014, 09:41 PM ET
Garden spiders are the creators of the delicate, circular, spoked webs that are the classic image of a spider web.
22 December 2014, 08:50 PM ET
The black mamba is one of the fastest and deadliest snakes in the world. Two drops of its venom can kill a person.
22 December 2014, 04:38 PM ET
Weddell seals have an amazing ability to dive deep and swim far for food, but how do they find their way back?
22 December 2014, 03:27 PM ET
Scientists have long wanted to know whether modern hands are related to the fins of fish, and now a new study finally reveals these structures are, indeed, related.
21 December 2014, 12:40 PM ET
'Tis the season to be jolly, and what could be more jolly than amusing animal stories? Here are some of our favorite holiday critters.
21 December 2014, 02:42 AM ET
Are seals using the Earth's magnetism to orient themselves under the ice?
20 December 2014, 05:56 PM ET
Long before satellites and weather models, people looked to nature for clues to predict the upcoming harshness of the coldest, darkest days of the year.
19 December 2014, 07:13 PM ET
19 December 2014, 05:03 PM ET
From humanoid robots to machine guns, here are five da Vinci inventions that were truly before their time.
18 December 2014, 05:14 PM ET
Animal-rights advocates seeking "personhood" for chimpanzees want to take their case to the highest court in New York State.
18 December 2014, 02:41 PM ET
The large carnivores of Europe — such as bears, wolves, lynx and wolverines — are experiencing a resurgence, even in nonprotected areas.
18 December 2014, 02:31 PM ET
Fool's gold helps preserve the bodies of some of the world's oldest animals. Sulfur-eating bacteria in the ocean helped the process of fossilization along.
18 December 2014, 01:02 PM ET
This Christmas, instead of wishing for reindeer on the roof, consider wishing for wild reindeer to get some much needed help.
17 December 2014, 09:28 AM ET
Life didn't immediately rebound after the world's greatest extinction, but cropped up in fits and starts.
17 December 2014, 08:46 AM ET
Even the editors of serious scientific journals are not immune to the charms of sleepy koalas and penguins playing with robots. The video team at Nature picked their top 10 favorite science stories involving cute animals (and some bots) of this year.
17 December 2014, 07:09 AM ET
Worldwide reindeer populations are dropping, and researchers say new herding and preservation methods are needed.
16 December 2014, 09:29 PM ET
Camel spiders are not spiders, and they don't eat camels — or people. These arachnids became infamous after the Gulf War.
16 December 2014, 12:46 AM ET
Coral snakes are small, vibrantly colored, highly poisonous snakes found in Asia and in the Americas. When threatened, they make a popping sound with their cloacas — essentially a fart.
13 December 2014, 05:23 PM ET
Higher chances of predation are putting native fauna at risk.
12 December 2014, 04:43 PM ET
With a bump from J.K. Rowling, "Luna" was picked as the name for an orphaned sea otter pup being raised at Chicago's Shedd Aquarium.
12 December 2014, 04:14 PM ET
Stony Brook University scientists have found the skull of a new "large-eyed agile herbivore" species, which may have lived among the later dinosaurs.
12 December 2014, 04:13 PM ET
Cataloguing chimps, berries and other life in Africa, researchers race to protect biodiversity on a warming planet.
12 December 2014, 03:57 PM ET
Researchers working in the Gulf of Mexico are using masses of jellyfish to help identify where the oceanic environment has changed. University of Southern Mississippi's Dr. Monty Graham explains why and how conditions in the water are shifting.
12 December 2014, 03:32 PM ET
Evolutionary biologists have made great strides in understanding bird genetics and discoveries haves helped narrow down their ages and relationships.
12 December 2014, 03:13 PM ET
Birds — like anteaters, baleen whales and turtles — don't have teeth. But this wasn't always the case. The common ancestor of all living birds sported a set of pearly whites 116 million years ago, a new study finds.
12 December 2014, 06:12 AM ET
A sex-changing California fish is growing bigger and gobbling up more sea urchins after a decade of protection, a new study finds.
12 December 2014, 12:47 AM ET
Rattlesnakes are found throughout North and South America. Their distinctive rattle warns intruders to stay away!
11 December 2014, 10:24 PM ET
Funnel-web spiders build funnels out of their webs. Some of these spiders are among the most venomous in the world.