A new analysis of the extinction of woolly mammoths and other large mammals more than 10,000 years ago suggests that they may have fallen victim to the same type of "trophic cascade" of ecosystem disruption that scientists ...
Plants & Animals
Jul 1, 2010
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Scientists have been alarmed for years about a mysterious fungus that wipes out frogs around the globe -- even in wildlife sanctuaries like Yosemite and Sequoia-Kings Canyon national parks.
Plants & Animals
May 12, 2010
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(PhysOrg.com) -- New evidence gleaned by analyzing calcium embedded in Chinese limestone suggests that volcanoes, which spewed massive amounts of carbon dioxide into the atmosphere for a million years, caused the biggest ...
Earth Sciences
Apr 27, 2010
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(PhysOrg.com) -- McGill researchers uncover first evidence that warm and moderate climate allowed dinosaurs to expand into one massive homogenous community across North America.
Archaeology
Apr 20, 2010
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(PhysOrg.com) -- Large-sized gastropods (up to 7 cm) dating from only 1 million years after the greatest mass extinction of all time, the Permian-Triassic extinction, have been discovered by an international team including ...
Earth Sciences
Feb 10, 2010
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(PhysOrg.com) -- A 60-million-year-old relative of crocodiles described this week by University of Florida researchers in the Journal of Vertebrate Paleontology was likely a food source for Titanoboa, the largest snake the ...
Archaeology
Feb 2, 2010
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(PhysOrg.com) -- The mass extinction of Australia's giant animals, such as huge kangaroos and rhinoceros-sized wombats, might have been more rapid than previously thought, according to new research from the University of ...
Archaeology
Jan 28, 2010
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If the planet is headed for another mass extinction like the previous five, each of which wiped out more than 75 percent of all species on the planet, then North American mammals are one-fifth to one-half the way there, according ...
Ecology
Dec 17, 2009
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A new fossil species suggests that some land animals may have survived the end-Permian extinction by living in cooler climates in Antarctica. Researchers have identified a distant relative of mammals that apparently survived ...
Earth Sciences
Dec 2, 2009
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Super Earths are named for their size, but these planets - which range from about 2 to 10 Earth masses - could be superior to the Earth when it comes to sustaining life. They could also provide an answer to the ‘Fermi Paradox’: ...
Space Exploration
Nov 30, 2009
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