Has the Earth's sixth mass extinction already arrived?
With the steep decline in populations of many animal species, from frogs and fish to tigers, some scientists have warned that Earth is on the brink of a mass extinction like those that occurred only five times ...
Mar 02, 2011 |
4.4 / 5 (27) |
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Discovery of a 160-million-year-old fossil represents a new milestone in early mammal evolution
(PhysOrg.com) -- A remarkably well-preserved fossil discovered in northeast China provides new information about the earliest ancestors of most of today's mammal species—the placental mammals. According ...
Other Sciences / Archaeology & Fossils
Aug 24, 2011 |
4.5 / 5 (17) |
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Mothers' hard work pays off with big brains for their babies
Brain growth in babies is linked to the amount of time and energy mothers 'invest', according to new research published today.
Mar 28, 2011 |
4.2 / 5 (18) |
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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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Trees evolved camouflage defense against long extinct predator: First evidence of camouflage defense in plants
(PhysOrg.com) -- Many animal species such as snakes, insects and fish have evolved camouflage defences to deter attack from their predators. However research published in New Phytologist has discovered that t ...
Jul 22, 2009 |
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Egg-laying beginning of the end for dinosaurs
Their reproductive strategy spelled the beginning of the end: The fact that dinosaurs laid eggs put them at a considerable disadvantage compared to viviparous mammals. Together with colleagues from the Zoological ...
Other Sciences / Archaeology & Fossils
Apr 17, 2012 |
4.7 / 5 (12) |
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Nearly one-tenth of hemisphere's mammals unlikely to outrun climate change: study
A safe haven could be out of reach for 9 percent of the Western Hemisphere's mammals, and as much as 40 percent in certain regions, because the animals just won't move swiftly enough to outpace climate change. ...
May 14, 2012 |
3.4 / 5 (16) |
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Small mammals -- and rest of food chain -- at greater risk from global warming than thought
The balance of biodiversity within North American small-mammal communities is so out of whack from the last episode of global warming about 12,000 years ago that the current climate change could push them ...
May 23, 2010 |
3.7 / 5 (12) |
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Hormone study finds monkeys in long-term relationship look strangely human
(PhysOrg.com) -- Monkeys in enduring relationships show a surprising correspondence in their levels of oxytocin, a key behavioral hormone, according to research published online June 28 in the journal Hormones and Behavior.
Jul 13, 2010 |
5 / 5 (8) |
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Harvesting of small fish species should be cut: study
(PhysOrg.com) -- New research on the fishing of small fish species near the bottom of their food chains suggests harvesting at levels previously thought to be sustainable could have devastating effects on ...
Jul 22, 2011 |
4.8 / 5 (8) |
5
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Naming evolution's winners and losers
(PhysOrg.com) -- Mammals and many species of birds and fish are among evolution's "winners," while crocodiles, alligators and a reptile cousin of snakes known as the tuatara are among the losers, according ...
Jul 29, 2009 |
3.3 / 5 (11) |
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Researcher compiles evidence in support of Darwin's theory of sexual selection
In 1871, Charles Darwin sparked debate that continues today when he proposed that human sex differences evolved based on sexual selection. Sexual selection is Darwin's theory that certain physical, mental or psychological ...
Apr 13, 2010 |
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Yosemite's alpine chipmunks take genetic hit from climate change
Global warming has forced alpine chipmunks in Yosemite to higher ground, prompting a startling decline in the species' genetic diversity, according to a new study by researchers at the University of California, ...
Feb 19, 2012 |
4.4 / 5 (7) |
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Wind farm in North Sea has positive net impact on fauna
A North-Sea wind farm has hardly any negative effects on fauna. At most, a few bird species will avoid such a wind farm. It turns out that a wind farm also provides a new natural habitat for organisms living ...
Technology / Energy & Green Tech
Aug 08, 2011 |
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