7,733 results
- Climate
Rate of atmospheric carbon dioxide rise unprecedented
The current rate of carbon dioxide entering the atmosphere is unprecedented over at least the last 66 million years, new research shows.
- Earth
Mega volcanism indicted in dinosaur demise
Precision dating strengthens idea that climate-altering Deccan volcanism contributed to dinosaur extinction.
- Anthropology
Ancient hominids moved into Greece about 206,000 years ago
New analysis puts people at a contested Greek site about 206,000 years ago.
- Animals
Eggs and other land foods won’t feed polar bears
Polar bears will not be able to survive on land by eating birds, eggs and vegetation, a new review concludes.
- Earth
Stronger quakes could strike other segments of Nepal fault
The magnitude 7.8 earthquake that struck Nepal’s capital city could be overshadowed by larger future earthquakes along the Himalayas, scientists say.
- Earth
Meeting of the Americas came early, study suggests
Volcanic crystals thought to have formed in Panama and found in an ancient Colombian streambed hint that North and South America may have met up roughly 10 million years earlier than once thought.
- Animals
Flowers make the menu for nearly all Galapagos birds
Almost every species of Galapagos land bird has been found feeding on the nectar and pollen of flowers. Such an expansion of diet has never before been observed.
- Oceans
On East Coast, sea levels lean southward
On North America’s East Coast, sea levels tilt slightly downward to the north, new research finds.
- Planetary Science
Year in review: Tectonics active on Europa
Jupiter’s frozen moon Europa has a shifting exterior analogous to Earth’s plate tectonics.
- Paleontology
Some trilobites sported dual digestive tracts
CT scans reveal trilobites with two-lane digestive tracts.
- Animals
Bees, up close and personal
A photo archive from the U.S. Geological Survey's Bee Inventory and Monitoring Lab offers detailed photos of bee species.
- Paleontology
Monkeys reached Americas about 36 million years ago
Peruvian fossils suggest ancient African primates somehow crossed the Atlantic Ocean and gave rise to South American monkeys.
