About 75 million years ago, a mosasaur — a dolphin-like, predatory, marine reptile that lived during the dinosaur age — bit another mosasaur so hard that it left its tooth behind, embedded in its foe's face.
The Museum of Modern Art (MoMA) in New York City announced that it has acquired the original 176 emoji for its permanent collection.
These finds have stumped scientists and captured imaginations.
A study of some old data from a 1990s-era particle-accelerator experiment could be a hint at new physics. Or it could be a fluke.
Ancient corpses dumped haphazardly into desert graves near the U.S.-Mexican border may have been victims of blood feuds between and within communities, a new study finds.
A self-driving truck recently made a 120-mile beer run.
Europe's ExoMars lander gauged out a crater 1.6 feet (0.5 meters) deep and nearly 8 feet (2.5 m) wide when it crashed into the Red Planet's surface last week, a new photo by a NASA Mars orbiter reveals.
The original rock where Jesus Christ is traditionally believed to have been buried in Jerusalem has been exposed to the light of day for the first time in centuries.
The church is said to be built over the original burial place of Jesus Christ. The structure in the middle of the dome is the Holy Edicule, which is built directly over the tomb.
A virus carried by ticks can be deadly, a new case report shows.
Dangerous bacteria, including MRSA, can spread from sick patients in the hospital to the scrubs of health care works, a new study finds.
A new treatment appears to help relieve phantom limb pain, a new study finds.
An experimental type of male birth control that uses shots of hormones to lower men's sperm counts works relatively well to prevent pregnancy.
Probiotics are often touted as a way to improve health, but what exactly do these "good" bacteria do for us? Here are some common myths about probiotics.
Although miscarriage is very common, secrecy about pregnancy loss has lent itself to pervasive myths.
Are probiotics safe to take, and do they have side effects? Here are eight expert tips about probiotics.
If seasonal allergies are getting in the way of spending time in the great outdoors, here are some tips from experts that may help.
Myths about seasonal allergies seem to spread as easily as so many pollen grains on the wind. Here's the truth behind some of the common misconceptions about allergies.
Heroin is a fast-acting opiate drug, and addiction to it is incredibly hard to overcome, experts say. Here are the facts about heroin.
People in their 20s are typically considered as having the time of their lives -- exploring and having fun. But experts say depression in young adults is not uncommon. Here are some signs to look for.
It can be hard to tell the difference between the typical turmoil of a teenager, and a depressed teen. Here are facts about teens with depression.
Marijuana use is becoming ever-more mainstream, with two states now allowing recreational use of the drug. From pot's mythical origins to false positives in baby urine, read on for some of the odder facts about this drug.
Depression can strike men and women in different ways, research shows. A better understanding of the differences between the sexes may help those with depression, researchers say.
Humans have been fighting viruses throughout history. Here are the nine viruses that are the world's worst killers, based on their mortality rates, or the sheer numbers of people they have killed.
Half a million years ago, chimpanzees and bonobos found a way to get together.
