25 June 2014, 02:34 PM ET
Crocodiles are large reptiles that belong to the order Crocodilia, which includes alligators, caimans and gharials.
25 June 2014, 12:37 PM ET
Drilus beetle larvae commandeer the shells of Albinaria snails by breaking and entering.
25 June 2014, 12:18 PM ET
The fossil of a wild-looking parasite with a tiny head and whose midbody evolution transformed into a sucking plate, has been discovered in what is now northeastern China.
25 June 2014, 11:45 AM ET
Ultra-strong spider silk, one of the toughest known natural fibers, could one day protect soldiers on the battlefield from bullets and other threats, one company says.
25 June 2014, 11:21 AM ET
From a 125-million-year-old flea to a tube-shaped Jurassic bloodsucker, here are some of the most bizarre parasites from the past.
25 June 2014, 11:08 AM ET
A researcher has discovered these clams are covered with small reflective spheres of silica that reflect light as the clams furl and unfurl their lips.
25 June 2014, 09:34 AM ET
Six rare kittens were recently born at a Scottish zoo, and hidden cameras caught the creatures' first steps outside their nest box.
24 June 2014, 11:04 PM ET
Paws forward, butt up — time to play!
24 June 2014, 07:07 PM ET
They want to suck your blood — but not for the taste. Vampire bats have a reduced ability to taste compared to other mammals. Even bitter taste receptors are genetically muted, new research finds.
24 June 2014, 01:42 PM ET
Mustangs were first brought over to the Americas by Spanish explorers.
23 June 2014, 04:29 PM ET
In the face of rising temperatures, emperor penguins in the Antarctic may be forced to find new breeding grounds instead of returning to the same spot to mate year after year, according to new research using satellite images of penguin poop.
23 June 2014, 04:22 PM ET
A newly-constructed "bee hotel" at the University of New Hampshire is at the center of the first-ever comprehensive study of New England's bee population.
23 June 2014, 02:36 PM ET
An aggressive type of trap-jaw ant with a mighty bite is gaining ground in the U.S. southeast, new research finds. The species, Odontomachus haematodus, is native to South America, but it seems to have spread recently along the Gulf Coast unnoticed.
23 June 2014, 10:35 AM ET
Fishermen captured video of the lengthy shark off the coast of New Jersey as it stole their chum bag hanging on the side of the boat.
22 June 2014, 04:37 PM ET
The shocking news that Satao, the much-loved African Elephant who lvied in Kenya’s Tsavo East National Park, has been killed and butchered for his tusks highlights once again the terrible and unsustainable toll of poaching elephants for their ivory.
20 June 2014, 04:50 PM ET
Good news for great whites: The sharks are on the rise off both the east and west coasts of the United States, two new studies show.
20 June 2014, 03:37 PM ET
There are more than 3,000 species of snakes in the world and there is at least one type of snake on every continent except Antarctica.
20 June 2014, 01:46 PM ET
Wayne Pacelle, president and CEO of the Humane Society, of the United States talks about the benefits of having dogs come to work with their owners.
20 June 2014, 01:05 AM ET
Meat-producer Cargill has decided gestation crates have no place in farming.
19 June 2014, 11:20 PM ET
Jaguars are large cats that can be found in North, Central and South America. They are identified by their yellow or orange coats, dark spots and short legs.
19 June 2014, 07:09 PM ET
Move over Triceratops: There's a new horned dinosaur in town, and its cranial ornamentation is even more impressive than the three-horned dinosaur the world has come to know and love.
19 June 2014, 07:46 AM ET
A major oil and gas company has pledged to stop plumbing for oil in Virunga National Park in the Democratic Republic of the Congo, after the World Wildlife Fund (WWF) and United States authorities pressured the firm to halt operations in the region.
18 June 2014, 11:52 PM ET
Crayfish, like honeybees, show human-like responses to stress and anxiety.
18 June 2014, 06:44 PM ET
After returning to the lower Colorado River in 2012 after a 22-year absence, the endangered razorback sucker fish is now spawning in Grand Canyon National Park.
18 June 2014, 05:00 PM ET
Scientists have found spiders that hunt fish on every continent except Antarctica.
18 June 2014, 05:00 PM ET
A surprising number of spiders quite literally fish for their meals. In fact, a new scientific review found that fish-eating spiders live on every continent except Antarctica.
18 June 2014, 11:13 AM ET
Not all sauropod dinosaurs were long-necked giants. Now, researchers have found miniature fossils that belonged to adult sauropods, revealing the processes that led to dwarf dinosaurs.
18 June 2014, 10:00 AM ET
Oxytocin — a chemical commonly known as the "love hormone" — might help strengthen the bond between man and his best friend: the dog.
18 June 2014, 09:53 AM ET
A bachelor party hiking in New Mexico stumbled across a 3-million-year-old stegomastodon skull, the prehistoric ancestor of mammoths and elephants. The skull is one of the most complete mastodon fossils ever discovered.
17 June 2014, 09:02 PM ET
Rats can recognize the what-might-have-been.
17 June 2014, 06:04 PM ET
From Shakespearean sonnets to impassioned speeches to lovers' whispers, human language is an amazingly rich form of expression, whose evolution has long puzzled scientists.
17 June 2014, 01:03 PM ET
The club of fellatio-loving animals just gained a new member: bears. Scientists have observed a pair of male brown bears in captivity in Croatia that regularly engaged in oral sex over several years.