16 January 2014, 09:28 AM ET
Clouds rising from the cracks near Barrow Alaska are pumping mercury down to the ice and ocean. It can be toxic to animals residing in the area, and can contaminate the food chain.
15 January 2014, 06:40 PM ET
New critter cams atop of Florida alligators reveal new insights about the predator's daily schedule.
15 January 2014, 06:02 PM ET
When a falcon swoops through the air and spots a flock of birds, these crafty predators use a special aerial attack strategy to capture prey in midflight, according to a new study.
15 January 2014, 05:26 PM ET
Many people are surprised to find that insects, jellyfish and sea urchins are animals.
15 January 2014, 05:09 PM ET
Lawmakers will gather here in Manhattan tomorrow (Jan. 16) to examine the effectiveness of New York State's regulations restricting the sale of ivory.
15 January 2014, 04:27 PM ET
Across the globe, hundreds of species of birds can be seen flying in V-formations. We have long suspected that these formation might help birds fly with less effort. Yet the precise mechanics have remained unknown – until now.
15 January 2014, 04:05 PM ET
The polar bear's days are not numbered, if nations continue to act.
15 January 2014, 04:00 PM ET
A camera-toting alligator, taking a swim, is seen chomping on an unidentified animal or fish.
15 January 2014, 03:35 PM ET
To help combat elephant poaching, the United States crushed its stockpile of illegal ivory for the first time last year. Now European Union member states could be poised to follow suit.
15 January 2014, 12:16 PM ET
Enlarged fly eye takes top prize in outstanding microscopy photo contest.
15 January 2014, 11:10 AM ET
Washington D.C.'s National Zoo shows off its new giant panda cub. Alicia Powell reports.
15 January 2014, 10:34 AM ET
Researchers mounted cameras on falcons to study how these raptors mount aerial attacks to pursue their prey. The footage sheds light on the strategies used by falcons to intercept their targets mid-flight.
15 January 2014, 07:35 AM ET
Blackie, the oldest Nile hippopotamus in North America, has died at age 59 at the Cleveland Metroparks Zoo.
14 January 2014, 07:14 PM ET
Elephant females call the shots in elephant society.
14 January 2014, 07:01 PM ET
The humble dingo has become something of a scapegoat since its arrival in Australia just 4000 years ago.
14 January 2014, 04:05 PM ET
A tiny, unassuming spider in the Peruvian Amazon uses its entire web as a slingshot to capture slow-moving insects such as mosquitoes.
14 January 2014, 12:49 PM ET
Google Street View and Google Earth have gone off-road into remote places like the Amazon, and helped wildlife conservation in the process.
14 January 2014, 10:31 AM ET
The nearly 5-month-old giant panda cub Bao Bao at the Smithsonian's National Zoo will make her public debut in a few days.
13 January 2014, 03:54 PM ET
An example of how good intentions can go awry: Researchers saved the black robin from extinction after the bird was reduced to a single breeding pair. The effort to save it, however, introduced a maladaptive egg-laying trait.
13 January 2014, 03:47 PM ET
Thank to its sharp beak, a small red squid emerged victorious after an epic hour-long battle with a much bigger owlfish, all caught on video last November in Monterey Bay, Calif.
13 January 2014, 01:41 PM ET
Researchers have confirmed an observation made by Charles Darwin more than 150 years ago: That animals living on islands are tamer and less skittish than related animals living on the mainland.
13 January 2014, 12:05 PM ET
13 January 2014, 11:34 AM ET
This 375-million-year-old fish, the closest known relative of the ancestors of limbed animals such as humans, likely evolved the foundation for rear legs even before the move to land, researchers say.
10 January 2014, 07:17 PM ET
NASA Associate ISS Program Scientist Tara Ruttley talks about the experiment and other science on the latest Orbital Sciences cargo run.
10 January 2014, 04:16 PM ET
A bird known for its gender-bending ways has yet again surprised researchers by breaking Europe's bird migration record.
10 January 2014, 04:13 PM ET
Cougar cubs recently born in the Santa Monica Mountains have been shown to be inbred through preliminary DNA tests.
10 January 2014, 02:18 PM ET
Most dog owners can sense the difference between a yip of joy and howl of discontent. Now, a new study finds people use the same general rules to recognize emotion in dogs as they do in fellow humans.
10 January 2014, 01:58 PM ET
Raven populations have shot up 300 percent in the last 40 years in the American West, and a new study suggests power poles and other human structures are to blame.
10 January 2014, 01:58 PM ET
When coral reefs call, the goby fish come to the rescue.
09 January 2014, 10:57 PM ET
Across the globe, seals gained protections in 2013.
09 January 2014, 06:21 PM ET
Central Park's horses should be released to retirement.
09 January 2014, 04:33 PM ET
Jumping sea snails may turn sluggish due to ocean acidification, as lower pH levels disrupt their ability to flee predators, a new study finds.