6,875 results
6,875 results for: Bears
- Astronomy
‘Space beads’ push back origins of iron working
Ancient Egyptians used advanced techniques to make beads out of 'metal from the sky.'
- Life
Fossils point to ancient ape-monkey split
Apes and monkeys split from a common ancestor more than 25 million years ago, fossil finds suggest.
- Plants
Giant genomes felled by DNA sequencing advances
Complete genetic blueprints have been collected for several conifer species.
- Life
Rogue genes on X chromosome turn on in testicles
Chunks of rapidly evolving DNA could affect sperm production in males.
- Neuroscience
Legalization trend forces review of marijuana’s dangers
Marijuana legalization advocates tout pot’s medicinal benefits and low addictiveness, while critics point to its neurological dangers. Research shows that the reality is somewhere in the middle.
- Life
Polar bears’ ancient roots pushed way back
Full genetic blueprints suggest the animals split from brown bears millions of years ago.
- Life
The name of the fungus
A rebellion has broken out against the traditional way of naming species in the peculiar, shape-shifting world of fungi.
- Planetary Science
The ice of a distant moon
Jupiter’s moon Europa hides a liquid ocean, and conceivably life, under kilometers of ice. The challenge for engineers is how to penetrate that frozen barrier with technology that can be launched into space and operated remotely.
- Animals
Eye-tracking cameras show peahens’ wandering gaze
Data show that female birds are not so riveted by their suitors’ magnificence
- Materials Science
Toylike blocks make lightweight, strong structures
Bucking trend toward reducing numbers of parts, MIT engineers suggest building planes from thousands of identical pieces.
- Humans
Y chromosome analysis moves Adam closer to Eve
A pair of genetic studies has pushed back age of men's most recent common ancestor.
- Health & Medicine
Whooping cough bounces back
A new type of pertussis vaccine introduced in the late 1990s may have led to the return of a disease that was nearly eradicated 40 years ago. Public opposition to vaccination hasn’t helped matters.
