Uncategorized
- Genetics
Dog domestication happened just once, ancient DNA study suggests
DNA of ancient canines counters idea that dogs were domesticated twice, in Europe and Asia.
- Physics
Scientists peek inside the mind of Maxwell’s demon
Scientists probe information retained by Maxwell’s demon.
- Planetary Science
Giant mud balls roamed the early solar system
The first asteroids may have been great balls of mud, which would solve some puzzling features of meteorites.
- Agriculture
GM moth trial gets a green light from USDA
GM diamondback moths will take wing in a New York field trial.
- Animals
Water bears will survive the end of the world as we know it
Water bears have a till-death-do-us-part pact with the sun, study suggests.
- Archaeology
Copper in Ötzi the Iceman’s ax came from surprisingly far away
Copper for the ancient Iceman’s blade traveled about 500 kilometers to his northern Italian home region.
- Life
These bacteria may egg on colon cancer
Streptococcus gallolyticus may goad colon cancer growth.
- Animals
Ravens pass tests of planning ahead in unnatural tasks
Clever birds may have evolved their own broad powers of apelike thinking about the future.
- Neuroscience
Brain activity helps build an alpha male
In mice, nerve cells in the prefrontal cortex influence whether an individual is dominant or submissive.
- Climate
Rising temperatures may mean fewer passengers on airplane flights
Global warming could force airplanes to carry a lighter load — and fewer passengers —on each flight.
- Earth
Delaware-sized iceberg breaks off Antarctic ice shelf
An iceberg about the size of Delaware splintered from the Larsen C ice shelf in one of the largest calving events ever recorded.
- Astronomy
Teensy star vies for title of smallest known
A Saturn-sized star is one of the smallest yet discovered.
