News tagged with eocene period
New study shows how giant tortoises, alligators thrived in High Arctic 50 million years ago
A new study of the High Arctic climate roughly 50 million years ago led by the University of Colorado at Boulder helps to explain how ancient alligators and giant tortoises were able to thrive on Ellesmere ...
Space & Earth / Earth Sciences
Aug 24, 2010 |
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Search results for eocene period
Diversity aided mammals' survival over deep time
When it comes to adapting to climate change, diversity is the mammal's best defense.
Apr 23, 2012 |
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Thawing permafrost 50 million years ago led to extreme global warming events
In a new study reported in Nature, climate scientist Rob DeConto of the University of Massachusetts Amherst and colleagues elsewhere propose a simple new mechanism to explain the source of carbon that fed a ...
Space & Earth / Earth Sciences
Apr 04, 2012 |
4.3 / 5 (28) |
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Research brings new understanding to past global warming events
A series of global warming events called hyperthermals that occurred more than 50 million years ago had a similar origin to a much larger hyperthermal of the period, the Pelaeocene-Eocene Thermal Maximum (PETM), ...
Space & Earth / Earth Sciences
Apr 02, 2012 |
4.8 / 5 (9) |
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Present ocean acidification rates are unprecedented: research
The world's oceans may be turning acidic faster today from human carbon emissions than they did during four major extinctions in the last 300 million years, when natural pulses of carbon sent global temperatures ...
Mar 01, 2012 |
4.3 / 5 (25) |
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Research reveals evolution of earliest horses was driven by climate change, global warming affected body size
When Sifrhippus, the earliest known horse, first appeared in the forests of North America more than 50 million years ago, it would not have been mistaken for a Clydesdale. It weighed in at around 12 pounds ...
Feb 23, 2012 |
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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 |
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Plunge in CO2 put the freeze on Antarctica
Plunge in CO2 put the freeze on AntarcticaAtmospheric carbon dioxide levels plunged by 40% before and during the formation of the Antarctic ice sheet 34 million years ago, according to a new study. The finding helps solv ...
Space & Earth / Earth Sciences
Dec 01, 2011 |
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New fossils of oldest American primate
(PhysOrg.com) -- Johns Hopkins researchers have identified the first ankle and toe bone fossils from the earliest North American true primate, which they say suggests that our earliest forerunners may have dwelled or moved ...
Other Sciences / Archaeology & Fossils
Nov 16, 2011 |
4.5 / 5 (2) |
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Climate change downsizing fauna, flora: study
Climate change is reducing the body size of many animal and plant species, including some which supply vital nutrition for more than a billion people already living near hunger's threshold, according to a ...
Oct 16, 2011 |
3.9 / 5 (18) |
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And the microbes shall inherit the Earth
(PhysOrg.com) -- Global warming is not a novel phenomenon, and by studying what happened to the planet during a period of global warming about 250 million years ago, one USC Dornsife scientist hopes to discover ...
Space & Earth / Earth Sciences
Oct 13, 2011 |
5 / 5 (6) |
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List of search results for eocene period
