31 July 2015, 05:16 PM ET
A giant python, about as long as a shipping container, was captured in Everglades National Park in Florida earlier this month (July 9).
31 July 2015, 08:15 AM ET
While pursing his Ph.D. at the University of Pennsylvania, Steven Jasinski fulfilled a childhood dream: he discovered a brand new dinosaur.
30 July 2015, 04:51 PM ET
Getting people to pay attention to a huge, global problem is easier when you have an enormous billboard at your disposal.
30 July 2015, 02:00 PM ET
An emerging infectious fungus that causes salamanders to die in droves could soon land on North American shores, scientists warn.
30 July 2015, 12:55 PM ET
Money from sports-hunting permits can fund protected parks that shelter wildlife and engage local communities in animal protection, but does paying such exorbitant fees actually help or hurt wildlife conservation?
29 July 2015, 10:11 AM ET
Jia Jia, a female giant panda, recently set new Guinness World Records for being the oldest panda in captivity. Here are photos of Jia Jia and her fellow pandas at Ocean Park in Hong Kong.
29 July 2015, 08:14 AM ET
A gorgeous riot of color comes from a surprising source in the winning image of a PLOS Genetics photo contest.
29 July 2015, 01:14 AM ET
Can perky penguins survive as the oceans grow crowded?
28 July 2015, 06:43 PM ET
One of the last five northern white rhinoceroses in the world has died. Three females and one male are left.
28 July 2015, 04:24 PM ET
A female panda in Hong Kong celebrated her 37th birthday today (July 28), becoming the oldest panda in captivity, and setting two new Guinness World Records in the process.
28 July 2015, 11:21 AM ET
Polar bears are known to be excellent swimmers, but new research suggests that they are also superb divers.
28 July 2015, 10:02 AM ET
Secret structures hidden within the serrated teeth of Tyrannosaurus rex and other theropods helped the fearsome dinosaurs tear apart their prey without chipping their pearly whites, a new study finds.
28 July 2015, 03:06 AM ET
The menu says snapper, or grouper, or even puffer fish — but what is really on your plate?
27 July 2015, 04:15 PM ET
When you order fish at a restaurant, you may not be getting what you think. The F.D.A. approves lists of fish species that can be grouped into labels such as snappers and groupers. The International advocacy organization Oceana explains.
23 July 2015, 06:27 PM ET
The mighty megafauna of the last ice age, including the wooly mammoths, short faced bears and cave lions, largely went extinct because of rapid climate-warming events, a new study finds.
23 July 2015, 02:04 PM ET
The oldest snake fossil on record looks almost like a modern snake, except for one glaring difference: It has four feet, each with five digits, a new study finds.
23 July 2015, 02:02 PM ET
Snakes used to have four legs, according to a roughly 120-million-year-old fossil from northeastern Brazil.
23 July 2015, 08:05 AM ET
During the dinosaur age, ichthyosaurs — large marine reptiles that look like dolphins — flourished in prehistoric oceans. But as competition in these areas grew, ichthyosaurs lost both territory and species before gradually going extinct, a study finds.
22 July 2015, 06:16 PM ET
Boa constrictors are notorious for their deadly grip, squeezing their next meal until it expires. But scientists have long wondered whether this fatal hug kills prey by suffocation or by obstructing blood flow in the snake's victims.
21 July 2015, 04:31 PM ET
Despite being criss-crossed by housing developments and a landfill, a small nature preserve is now bouncing back, boosting the rare butterflies that call it home.
17 July 2015, 07:03 AM ET
Black widow males destroy large sections of their mates' webs in order to ward off potential rivals.
16 July 2015, 04:44 PM ET
People raising backyard chickens should know not to cuddle or kiss the birds, to avoid the risk of Salmonella, according to the CDC.
16 July 2015, 11:54 AM ET
Chimpanzees can quickly identify the faces of other chimps, as well as those of human adults and babies, according to new research that suggests humans' closest living relatives look at faces holistically like humans do.
16 July 2015, 11:01 AM ET
Statistically speaking, sharks pose very little threat to humans. So why are people so afraid of the animals?
16 July 2015, 09:46 AM ET
A flamboyant cousin of the fearsome Velociraptor, covered in layers of showy feathers from head to tail, once stalked meaty prey in the forests of what is now northeastern China.
16 July 2015, 09:45 AM ET
One of Velociraptor's cousins had an armful of feathers, even if its arms were short, a new study finds.
15 July 2015, 05:13 PM ET
A young, great white shark had a near-death experience when the retreating tide left it stranded on a beach in Cape Cod on Monday afternoon (July 13). Beachgoers spotted the giant fish writhing on the sand, and threw water on its gills to help it breathe.
15 July 2015, 09:09 AM ET
If the northern giant mouse lemur were the size of a human, its testes would be as big as grapefruits. To capture these testes measurements, scientists had to be quick on their feet in the forests of Madagascar.
15 July 2015, 09:06 AM ET
Check out these images of the northern giant mouse lemur, Mirza zaza, which has the largest testis relative to body size of any primate.
14 July 2015, 07:14 PM ET
It's time to call Guinness World Records: Researchers on an Antarctic expedition have uncovered sperm cells dating to a whopping 50 million years ago, making these the oldest known animal sperm cells, a new study finds.
14 July 2015, 07:20 AM ET
The black leopard of the Malaysian Peninsula actually has hidden leopard spots, which can be revealed using infrared cameras.
14 July 2015, 07:18 AM ET
Here's a look at magical black leopards whose complex patterns of spots are visible under infrared light. The leopards grace the Malaysian peninsula.
10 July 2015, 03:04 PM ET
You don't have to be a Kardashian to stand out on the Internet — all you need is at least 20 pairs of bright-yellow legs, a gleaming red head and venomous fangs.
10 July 2015, 02:01 PM ET
Ancient gelatinous animals that resemble Christmas tree ornaments were protected by hard, spiny skeletons and lacked the trademark tentacles of today's jellies, fossils of the long-dead jellyfishlike creatures suggest.
10 July 2015, 02:00 PM ET
The Cambrian explosion, when simple life forms rapidly evolved to more complex creatures, produced some beautiful, bizarre, and mysterious animals
10 July 2015, 12:07 PM ET
New photos from the Peruvian Amazon have captured an adorable harpy eagle chick and its mom.