Men are more prone to competitive risk taking and violent behavior, so what happens when the number of men is greater than the number of women in a population?
Evolution
Mar 24, 2020
6
347
Males that face tougher competition for females risk having offspring with a greater number of harmful mutations in their genome than males without rivals. Researchers at Uppsala University have discovered this correlation ...
Plants & Animals
Mar 16, 2020
1
228
Both humans and chimpanzees can be extremely territorial, and territorial disputes between groups can turn violent, with individuals killing each other. In humans, such between-group competition can escalate to war and devastating ...
Plants & Animals
Jan 3, 2020
0
130
Similar to the organization of human cities, animal and plant communities have ghettos or ethnic neighborhoods, where low-abundant species group to enhance their persistence against more competitive species. This unexpected ...
Ecology
Dec 17, 2019
0
110
Researchers at the University of Exeter, UK, followed a population of wild banded mongooses (Mungos mungo) in western Uganda for 15 years, using ultrasound imaging to track which females became pregnant and which carried ...
Plants & Animals
Dec 13, 2019
0
8
Lush rainforest covers millions of hectares of the Democratic Republic of Congo, a central part of Earth's natural defence against global warming—but it is under severe threat from a perfect storm of mismanagement and corruption.
Environment
Dec 9, 2019
0
20
Airlines have taken steps to reduce their carbon footprints under the gaze of public opinion, but the pressure of the bottom line means some fly with extra fuel, boosting emissions of climate-changing greenhouse gases.
Environment
Nov 20, 2019
1
12
Adding energy to any material, such as by heating it, almost always makes its structure less orderly. Ice, for example, with its crystalline structure, melts to become liquid water, with no order at all.
Condensed Matter
Nov 12, 2019
0
8604
The original 1892 manuscript laying out the premise of the modern Olympic Games will be auctioned in December in New York, Sotheby's announced Wednesday.
Other
Oct 24, 2019
0
2
After a decade of booming enrollment by students from China, American universities are starting to see steep declines as political tensions between the two countries cut into a major source of tuition revenue.
Education
Sep 23, 2019
0
4
