News tagged with diversity
Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago
Space & Earth / Earth Sciences
Nov 23, 2009 |
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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, ...
Map of Human Bacterial Diversity Shows Wide Interpersonal Differences
Nov 05, 2009 |
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(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 ...
Study finds unexpected bacterial diversity on human skin
May 28, 2009 |
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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 ...
Dinosaurs declined before mass extinction
Other Sciences / Archaeology & Fossils
Apr 30, 2009 |
4.1 / 5 (14) |
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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.
Geneticists publish largest-ever study on African genetics revealing origins, migration
Apr 30, 2009 |
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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 ...
Despite their diversity, pygmies of Western Central Africa share recent common ancestors
Biology /
Feb 05, 2009 |
4.5 / 5 (4) |
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Despite the great cultural, physical, and genetic diversity found amongst the numerous West Central African human populations that are collectively designated as "Pygmies," a report published online on February 5th in Current Bi ...
Our microbes, ourselves
Biology /
Jan 19, 2009 |
4.4 / 5 (7) |
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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 ...
How a simple mathematic formula is starting to explain the bizarre prevalence of altruism in society
Jul 18, 2008 |
3.7 / 5 (59) |
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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?
Some birds listen, instead of look, for mates
Dec 02, 2009 |
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Looks can be deceiving, but certain bird species have figured out that a voice can tell them most of what they need to know to find the right mate.
Opposites attract: Monkeys choose mating partners with different genes
Nov 24, 2009 |
5 / 5 (1) |
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The world's largest species of monkey 'chooses' mates with genes that are different from their own to guarantee healthy and strong offspring, according to a new research study.
New research shows how mobile DNA survives -- and thrives -- in plants, animals
Oct 21, 2009 |
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(PhysOrg.com) -- Bits of movable DNA called transposable elements or TEs fill up the genomes of plants and animals, but it has remained unclear how a genome can survive a rapid burst of hundreds, even thousands of new TE ...
Scientists outline planetary boundaries: A safe operating space for humanity
Space & Earth / Earth Sciences
Sep 23, 2009 |
2.4 / 5 (7) |
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New approaches are needed to help humanity deal with climate change and other global environmental threats that lie ahead in the 21st century, according to a group of 28 internationally renowned scientists.
Researchers find no loss of vegetable diversity in the 20th century; correct math error in 1983 study
Sep 15, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Two University of Georgia scholars argue against the conventional wisdom that the 20th century was a disaster for vegetable crop diversity by showing that there was no overall loss of vegetable diversity ...
The peopling of the Americas: Genetic ancestry influences health
Aug 14, 2009 |
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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 ...
Researchers study genetic evolution of African dogs
Aug 04, 2009 |
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(PhysOrg.com) -- African village dogs are not a mixture of modern breeds but have directly descended from an ancestral pool of indigenous dogs, according to a Cornell-led genetic analysis of hundreds of semi-feral ...
