05 December 2013, 09:28 AM ET
Two thousand dead mice full of painkillers were dropped into Guam to kill invasive snakes.
05 December 2013, 07:49 AM ET
The U.S. pregnancy rate has fallen almost continuously over the last decade, and reached a 12-year low in 2009, according to a new government report.
05 December 2013, 06:43 AM ET
Sleeping habits change when kids enter their teen years in part because of puberty. But a new study suggests that teens' relationships with friends and parents play a bigger role in influencing teen sleep than biology.
04 December 2013, 10:15 PM ET
Drinking alcohol is common around the holidays, but how does alcohol affect your medications? Here's a look at eight common medications, and how they interact with alcohol.
04 December 2013, 09:36 PM ET
The Andean peak is also the highest in the Western and Southern hemispheres.
04 December 2013, 07:38 PM ET
A wall reportedly collapsed in the ruins of Pompeii this week, just the latest incident in a series of preservation woes for the ancient city.
04 December 2013, 07:00 PM ET
Perhaps if they have a serious purpose, such as a discreet form of assistance for people with disabilities, it will be easier to take them seriously.
04 December 2013, 06:54 PM ET
Scientists have captured the best view yet of how gamma-ray bursts, the most powerful explosions in the universe, are shaped by extreme magnetic fields around black holes.
04 December 2013, 06:37 PM ET
Don't pet the tiger.
04 December 2013, 06:06 PM ET
Critically endangered, and with fewer than 50 left in the wild, it is justifiably one of Australia’s most well-known endangered species.
04 December 2013, 05:00 PM ET
Births of triplets from in vitro fertilization (IVF) are declining, but there's still a lot of work to be done to reduce the U.S. rate of multiple births, a new study finds.
04 December 2013, 04:59 PM ET
From the air, Mima mounds look like upside-down egg cartons or grass-covered bubble wrap. A new study suggests burrowing gophers build the mysterious mounds.
04 December 2013, 04:43 PM ET
This holiday season, get the science nerd in your life something to match their passion, from a gorgeous mineral calendar to space-inspired jewelry to a spice rack straight out of Biology 101.
04 December 2013, 04:40 PM ET
A new twist on an old mystery may finally settle the debate over the origin of Mima mounds, which bulge out of the ground like enormous, grass-covered bubble wrap.
04 December 2013, 03:27 PM ET
Famed climate scientist James Hansen and colleagues from a diverse array of disciplines, including economist Jeffrey Sachs, make the case that warming needs to be kept below the widely cited figure of 2 degrees Celsius, by means of a carbon tax.
04 December 2013, 03:17 PM ET
A new DNA test can predict how long women with ovarian cancer will survive, and guide personalized treatment decisions, according to new research.
04 December 2013, 03:02 PM ET
Five distinct humpback whale populations have been identified in the North Pacific Ocean, in the most comprehensive genetic study of these marine mammals in this region of the ocean yet.
04 December 2013, 02:46 PM ET
In one of the most shocking tales of survival-at-sea ever told, a man lived for almost three days inside a sunken ship at the bottom of the ocean.
04 December 2013, 02:06 PM ET
It seems there's almost nothing computers can't simulate these days: Now, a new computer program simulates human birth using 3D virtual reality. The system could help doctors and midwives prepare for unusual or dangerous births, according to the researche
04 December 2013, 02:06 PM ET
A World War II-era Japanese submarine that had been captured and intentionally sunk by U.S. forces was discovered earlier this year in its watery tomb. The massive submarine, lost underwater since 1946, was found off the coast of Oahu.
04 December 2013, 02:03 PM ET
The sounds of icebergs calving make the oceans a noisier place, which could make it more difficult for whales and other cetaceans to hear each other's calls, new research suggests.
04 December 2013, 01:51 PM ET
Hip impingement, a condition in which the edges of the hip's ball and socket joint are rough and jagged, is increasingly diagnosed among those under 30 and often requires surgery to fix. Famous cases include Lady Gaga and Alex Rodriguez.
04 December 2013, 01:50 PM ET
Scientists report the brightly-colored sea slug is making a comeback to Southern California waters.
04 December 2013, 01:01 PM ET
The sequencing of 400,000-year-old human genetic material is a "breakthrough," says the study's lead author. The DNA, which may belong to an as-yet-unknown hominid, also sheds light on a close relatives of Neanderthals called the Denisovans.
04 December 2013, 01:00 PM ET
The thighbone of this hominid has revealed the oldest known human DNA yet. The results suggest human evolution was even more confusing than before thought, researchers say.
04 December 2013, 01:00 PM ET
A dense crystalline rain falling into Earth's mantle could explain how a mysterious seismic boundary called the Moho forms beneath the crust.
04 December 2013, 12:59 PM ET
New research suggests that some Neanderthals kept a tidy home. Scientists say they found a strategically placed hearth and separate spaces for butchering and tool making during excavations at a cave in Italy where a group of our closest relatives.
04 December 2013, 12:29 PM ET
Voyager 1 sent back 'tones' recorded by a plasma wave instrument showing the change as the craft crossed over from the heliosphere to interstellar space.
04 December 2013, 10:04 AM ET
As waters rise around New York, so does a city park.
04 December 2013, 09:43 AM ET
The hidden bonanza in Egypt may include several small tombs, with the possibility of a big-time tomb holding a royal individual, say archaeologists who have examined the site with ground-penetrating radar and excavations.
04 December 2013, 09:13 AM ET
Clearing the last legislative hurdle, U.S. research chimps now head to peaceful retirements at sanctuaries.
04 December 2013, 08:57 AM ET
Astronomers using NASA's Hubble Space Telescope have solved a 40-year mystery on the origin of the Magellanic Stream, a long ribbon of gas stretching nearly halfway around our Milky Way galaxy, as seen in this space wallpaper.