6,878 results
6,878 results for: Bears
- Earth
Oldest feathered dino shows its colors
Analysis of a fossil suggests plumage first evolved for display, not flight.
- Space
Geophysicists push age of Earth’s magnetic field back 250 million years
South African rocks suggest that the earliest stages of life on Earth were protected from harmful solar radiation.
- Humans
Water, water everywhere
Sid Perkins uncovers the amazing amount of “hidden water” in many consumer products.
- Earth
Dinosaurs, in living color
Researchers find microscopic structures in some fossils that may have held pigments.
- Archaeology
Ancient hominids may have been seafarers
Researchers have discovered hundreds of African-style stone hand axes on Crete, suggesting that sea-going hominids reached the island hundreds of thousands of years ago en route to Europe.
- Earth
The FY 2011 budget: So much for transparency
Cabinet officials and other administration leaders met with reporters yesterday to outline the President’s Fiscal Year 2011 federal budget. That spending blueprint includes $147-billion-and-change for research and development programs. But in contrast to past years, details tended to be skimpy today — and any chance for followup or verification of apparent trends has proven more difficult than usual.
- Paleontology
King of the ancient seas
Paleontologists discover fossilized skeleton of bus-sized marine reptile that had teeth with serrated edges.
- Animals
Oops, missed that fossil iridescence
Nanostructures on a preserved feather offer the first fossil evidence of bird colors not from pigments, a new study says.
- Life
Briny deep basin may be home to animals thriving without oxygen
Creatures living deep in the Mediterranean without oxygen would be a remarkable first, biologists say.
- Humans
In teeth, more cracks are better than one
Cracks in tooth enamel, called tufts, distribute force and shield a tooth from fracture, researchers report.
- Health & Medicine
Mummies reveal heart disease plagued ancient Egyptians
CT scans of preserved individuals show hardening of arteries similar to that seen in people today.
- Earth
Small earthquakes may not predict larger ones
Quakes far from tectonic plate boundaries may simply be aftershocks of ancient temblors.
