A new study reveals that sharks may have evolved from bony ancestors, a finding that suggests that modern sharks may be more advanced than previously thought.
Scientists mapping the sea floor off the southern California coast suggest there is a tsunami risk, but likely just a modest one.
Seven documented instances of facultative parthenogenesis in smalltooth sawfish suggest that the phenomena might be more common than we thought.
What causes some organizations to become rife with corruption? The answer has little to do with an individual's personal morality, say experts.
The severe flooding in Texas and Oklahoma is caused by an El Niño pattern that has split the jet stream in two.
A new photo snapped by NASA's Dawn spacecraft shows the meteor battered surface of Ceres, a dwarf planet in our solar system's asteroid belt.
The space advocacy group, the Planetary Society, has restored contact with its solar sail test vehicle, which is currently in orbit around Earth.
NASA's Cassini spacecraft is set to make its last close pass of Hyperion, an irregular, spongelike moon orbiting Saturn.
A new genetic analysis suggests that humans trekked through Egypt on their way out of Africa.
Just three weeks ago, there were thought to be about 300,000 saiga roaming the Kazakh steppes. Now, nearly 121,000 carcasses have been discovered.
Saturday's earthquake off the coast of Japan was big, magnitude 7.8, but it was also deep, at least 370 miles below the Earth's surface. Why that makes a difference.
New genetic research suggests that humans migrated out of Africa through Egypt, not Ethiopia.
New research helps us understand why 40% of honeybee colonies in the US have vanished.
NASA's next mission to the Red Planet will be observed by a duo of pint-sized satellites, set to be launched in March 2016.
New research suggests that fruit flies have a simple internal timekeeping mechanism, and can even learn to associate smells with different times in the day.
As NASA's New Horizons spacecraft closes in on Pluto, it continues to release sharper images of the icy dwarf planet.
Scientists have developed a six-legged robot the can adapt to keep walking after having two of its legs broken.
Archaeologists in Spain have discovered an ancient human skull that shows signs of repeated blunt-force trauma, suggesting foul play.
A research team in Ethiopia has discovered what they say is a new species of hominin that may have lived at the same time and place as the well-known Australopithecus afarensis.
The discovery suggests that the field of early humans may have been more diverse than previously thought.
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