News tagged with diversity
How a simple mathematic formula is starting to explain the bizarre prevalence of altruism in society
Jul 18, 2008 |
3.7 / 5 (59) |
13
Why do humans cooperate in things as diverse as environment conservation or the creation of fairer societies, even when they don’t receive anything in exchange or, worst, they might even be penalized?
Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago
Space & Earth / Earth Sciences
Nov 23, 2009 |
4.5 / 5 (17) |
3
A new study provides "incontrovertible evidence" that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter, ...
'Living fossil' tree contains genetic imprints of rain forests under climate change
Biology /
Oct 30, 2008 |
4.4 / 5 (17) |
0
(PhysOrg.com) -- A "living fossil" tree species is helping a University of Michigan researcher understand how tropical forests responded to past climate change and how they may react to global warming in the ...
Dinosaurs declined before mass extinction
Other Sciences / Archaeology & Fossils
Apr 30, 2009 |
4.1 / 5 (14) |
5
Dinosaurs were dying out much earlier than the mass extinction event 65 million years ago, Natural History Museum scientists report in the Proceedings of the Royal Society journal today.
How to create less selfish societies?
Feb 06, 2009 |
4.4 / 5 (13) |
17
(GPEARI, Portugal) -- Cooperation, despite being now considered the third force of evolution, just behind mutation and natural selection, is difficult to explain in the context of an evolutionary process based on competition ...
Map of Human Bacterial Diversity Shows Wide Interpersonal Differences
Nov 05, 2009 |
4.7 / 5 (11) |
0
(PhysOrg.com) -- A University of Colorado at Boulder team has developed the first atlas of bacterial diversity across the human body, charting wide variations in microbe populations that live in different ...
Ancient Mexican maize varieties
Biology /
Jun 26, 2008 |
4.7 / 5 (9) |
0
Maize was first domesticated in the highlands of Mexico about 10,000 years ago and is now one of the most important crop plants in the world. It is a member of the grass family, which also hosts the world's other major ...
Study finds unexpected bacterial diversity on human skin
May 28, 2009 |
5 / 5 (8) |
0
The health of our skin -- one of the body's first lines of defense against illness and injury — depends upon the delicate balance between our own cells and the millions of bacteria and other one-celled microbes ...
Geneticists publish largest-ever study on African genetics revealing origins, migration
Apr 30, 2009 |
4.9 / 5 (8) |
0
African, American, and European researchers working in collaboration over a 10-year period have released the largest-ever study of African genetic data--more than four million genotypes--providing a library of new information ...
Biofuels could hasten climate change
Apr 14, 2009 |
3.7 / 5 (9) |
2
A new study finds that it will take more than 75 years for the carbon emissions saved through the use of biofuels to compensate for the carbon lost when biofuel plantations are established on forestlands. If the original ...
Our microbes, ourselves
Biology /
Jan 19, 2009 |
4.4 / 5 (7) |
1
In terms of diversity and sheer numbers, the microbes occupying the human gut easily dwarf the billions of people inhabiting the Earth. Numbering in the tens of trillions and representing many thousands of ...
Native birds might restock poultry industry's genetic stock
Biology /
Nov 03, 2008 |
4.3 / 5 (7) |
0
As concerns such as avian flu, animal welfare and consumer preferences impact the poultry industry, the reduced genetic diversity of commercial bird breeds increases their vulnerability and the industry's ...
The peopling of the Americas: Genetic ancestry influences health
Aug 14, 2009 |
4.3 / 5 (7) |
5
At one time or another most of us wonder where we came from, where our parents or grandparents and their parents came from. Did our ancestors come from Europe or Asia? As curious as we are about our ancestors, for practical ...
Sexual practice of polygyny skews genetic variability
Biology /
Sep 26, 2008 |
3.9 / 5 (7) |
0
Researchers have found DNA evidence that polygyny, the practice among males of siring children with multiple female partners at the same time or successively, has led to an excess of genetic diversity on the X chromosome ...
Ancient marine invertebrate diversity less explosive than thought
Biology /
Jul 03, 2008 |
4.6 / 5 (5) |
0
Diversity among the ancestors of such marine creatures as clams, sand dollars and lobsters showed only a modest rise beginning 144 million years ago with no clear trend afterwards, according to an international ...
