12 August 2015, 04:57 PM ET
12 August 2015, 04:24 PM ET
A very unusual octopus has scientists wondering just how well they really know the mysterious eight-armed creatures that inhabit the world's oceans.
12 August 2015, 07:41 AM ET
News of a grizzly bear attacking a 63-year-old man, who was a skilled hiker, in Yellowstone on Friday (Aug. 7), may have even avid adventurers wondering what's the best way to escape the long and curved claws of such a wild animal.
12 August 2015, 01:23 AM ET
Despite being fast, efficient and agile, this sea lion swimming technique is quite different from the way other large fish and marine mammals move through the water.
10 August 2015, 12:30 PM ET
Some butterfly species could disappear from southern Britain in the next 35 years if climate change and habitat loss continue, according to new research.
10 August 2015, 11:59 AM ET
Photos of butterflies that will likely go extinct by 2050 in southern Britain if their habitats aren't preserved and droughts worsen.
07 August 2015, 02:25 PM ET
An animal's ecological niche largely explains its pupil shape, from the vertical slits of a cat to the bizarre rectangles in a goat's eye.
07 August 2015, 10:50 AM ET
Lurking in the dark depths of the sea, a new species of fish that looks more alien than Earthling, with its needlelike teeth and glowing fishing pole of sorts atop its head, has been discovered.
07 August 2015, 10:15 AM ET
Here are a few of the things researchers learned from the lion and his brethren.
07 August 2015, 10:00 AM ET
Divers often swim past bizarre creatures of the deep, but an elephant-size, jellylike blob left a group of them mystified.
06 August 2015, 12:23 PM ET
In the wilds of Brazil, researchers have discovered the first frogs with venomous spikes on their heads. Just a gram of this venom could take down tens of humans or thousands of mice.
06 August 2015, 10:54 AM ET
A cute new Andean frog has a dark-brown "face mask" and a white mottled belly. The little guy is not much bigger than a jelly bean.
05 August 2015, 06:56 PM ET
Wasps can do a lot more than ruin a summer picnic.
05 August 2015, 03:09 PM ET
These animals basically have the ability to see all around themselves. Scientist believe that they evolved in this manner to give them an advantage when fleeing from predators.
05 August 2015, 02:30 PM ET
About 10 million years ago, a distant cousin of the modern walrus snapped at fish as it swam near the shore of what is now modern Japan, a new study finds.
05 August 2015, 02:29 PM ET
Exotic animals are being set up for slaughter by ranchers in several U.S. states. They are held in pens and for a price, hunters have the opportunity to kill them.
05 August 2015, 11:06 AM ET
This spider's incredible mating dance will make you swoon.
04 August 2015, 08:14 PM ET
Cecil the lion is but a symbol of the "factory" approach to hunting.
04 August 2015, 10:41 AM ET
The fossilized remains of an ancient marine reptile with an extremely long neck and paddlelike appendages were recently uncovered in an unlikely place: the side of a cliff in Alaska.
04 August 2015, 07:11 AM ET
Ancient mammal-like reptiles that once grazed across the globe may have possessed many of the fighting tactics seen in modern herbivores, including head butting and attacks with giant fangs.
03 August 2015, 01:35 PM ET
A soft-bodied, fernlike creature reproduced in Earth's ancient oceans about 565 million years ago, making it the earliest known example of procreation in a complex organism, a new study finds.
03 August 2015, 09:18 AM ET
A recent photo contest highlights images captured by ecologists in the field.
03 August 2015, 07:05 AM ET
The winning photos from a recent ecology photo contest prove that Mother Nature is always ready for her close-up.
02 August 2015, 10:02 AM ET
When it comes to sex, are butterflies as nurturing and gentle as they appear to be, or is there a more aggressive side to their mating?
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?