416 results
- Genetics
Single exodus from Africa gave rise to today’s non-Africans
Genetics and climate studies differ on when modern humans left Africa.
- Climate
Tranquil ecosystems may explain wild swings in carbon dioxide stashing
Semiarid ecosystems, such as grasslands and shrublands, are behind the large variation in the amount of atmospheric carbon dioxide sucked in by land each year.
- Genetics
Extinct species may get a second chance
An evolutionary biologist explains the obstacles scientists must overcome to revive extinct species.
- Paleontology
Rise of East African Plateau dated by whale fossil
A whale fossil is helping to pinpoint when the East African Plateau started to rise and how the uplift played a role in human evolution, scientists say.
- Life
North American bird update finds a little good news
Conservation measures have succeeded in improving the plight of certain North American bird species, but overall the national report card says “needs improvement.”
- Anthropology
Pots from hunter-gatherer site in China tell tale of lifestyle shift
Chinese foragers settled down and made pottery shortly before farming’s ascent.
- Climate
Warm, wet weather may have helped Genghis Khan rule
Mild, wet weather — not drought — may have helped Genghis Khan expand the Mongolian empire to the largest in human history.
- Genetics
Gene drives spread their wings
Gene drives may wipe out malaria and take down invasive species. But they may be difficult to control.
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- Earth
Shrinking ancient sea may have spawned Sahara Desert
The Saharan Desert probably formed 7 million years ago as the ancient Tethys Sea, the forerunner of the Mediterranean Sea, shrank.
- Animals
Apes do the darndest things
Several chimp behaviors have researchers wondering if apes are a good model for early hominid life.
- Microbes
Prairie microbes could aid region’s restoration
Surveying the bacteria living in the soils of grassland ecosystems may help revive the habitats.
