News tagged with diversity
Related topics: species
Genetic analysis finds that modern humans evolved from southern Africa's Bushmen
A team of Stanford University scientists, using the largest-ever genetic analysis of remote tribal people, have determined that the human family tree is rooted in one of the world's most marginal and primitive people - the ...
Mar 09, 2011 |
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Research team finds new explanation for Cambrian explosion
(PhysOrg.com) -- For hundreds of years, researchers from many branches of science have sought to explain the veritable explosion in diversity in animal organisms that started approximately 541 million years ...
Space & Earth / Earth Sciences
Nov 29, 2011 |
4.8 / 5 (20) |
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US sees massive drop in bumble bees: study (Update)
Weakened by inbreeding and disease, bumble bees have died off at an astonishing rate over the past 20 years, with some US populations diving more than 90 percent, according to a new study.
Jan 03, 2011 |
4.4 / 5 (19) |
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Over 65 million years North American mammal evolution has tracked with climate change
Climate changes profoundly influenced the rise and fall of six distinct, successive waves of mammal species diversity in North America over the last 65 million years, shows a novel statistical analysis led ...
Dec 26, 2011 |
4 / 5 (17) |
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New research challenges evolutionary theory
(PhysOrg.com) -- New research from the University of Reading overturns conventional views on the nature of evolution, arguing that mammals did not develop into their many different forms in one early and rapid ...
Oct 20, 2011 |
3.5 / 5 (19) |
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True causes for extinction of cave bear revealed
The cave bear started to become extinct in Europe 24,000 years ago, but until now the cause was unknown. An international team of scientists has analysed mitochondrial DNA sequences from 17 new fossil samples, ...
Other Sciences / Archaeology & Fossils
Aug 24, 2010 |
4.3 / 5 (15) |
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History's normal rate of species disappearance is accelerating, scientists say
Biologist E.O. Wilson once pondered whether many of our fellow living things were doomed once evolution gave rise to an intelligent, technological creature that also happened to be a rapacious carnivore, fiercely territorial ...
Jul 31, 2011 |
3.9 / 5 (16) |
11
Advantages of living in the dark: The multiple evolution events of 'blind' cavefish
The blind Mexican cavefish (Astyanax mexicanus) have not only lost their sight but have adapted to perpetual darkness by also losing their pigment (albinism) and having altered sleep patterns. New research publis ...
Jan 22, 2012 |
4.8 / 5 (11) |
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Evolution during human colonizations
Most human populations are the product of a series of range expansions having occurred since modern humans left Africa some 50,000 years ago to colonize the rest of the world, but how have these processes influenced today's ...
Nov 03, 2011 |
4.6 / 5 (11) |
3
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New family of legless amphibians found in India
Since before the age of dinosaurs it has burrowed unbothered beneath the monsoon-soaked soils of remote northeast India - unknown to science and mistaken by villagers as a deadly, miniature snake.
Feb 22, 2012 |
5 / 5 (9) |
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New explanation for the origin of high species diversity
An international team of scientists have reset the agenda for future research in the highly diverse Amazon region by showing that the extraordinary diversity found there is much older than generally thought.
Nov 11, 2010 |
4.3 / 5 (10) |
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As crops wither in Russia's severe drought, vital plant field bank faces demolition
As the fate of Europe's largest collection of fruit and berries hangs in the balance of a Russian court decision, the Global Crop Diversity Trust issued an urgent appeal for the Russian government to embrace ...
Aug 07, 2010 |
4.9 / 5 (8) |
1
Climate change models may underestimate extinctions
Predictions of the loss of animal and plant diversity around the world are common under models of future climate change. But a new study shows that because these climate models don't account for species competition ...
Jan 04, 2012 |
4.8 / 5 (8) |
6
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Oily whale bones puzzle solved
The puzzle of why some oily whale bones make great habitats for weird and wonderful deep sea creatures has been solved by Natural History Museum scientists this month.
Aug 31, 2010 |
4.6 / 5 (8) |
3
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Not so fast -- researchers find that lasting evolutionary change takes about one million years
In research that will help address a long-running debate and apparent contradiction between short- and long-term evolutionary change, scientists have discovered that although evolution is a constant and sometimes ...
Aug 22, 2011 |
4.6 / 5 (8) |
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