(PhysOrg.com) -- There has been some debate over the last century or so about whether the extinct American lion, Panthera atrox, which dates from the Pleistocene, is related to present day African lions (Panthera leo) or ...
The latest study of the microscopic wear patterns on the teeth of the American lions and saber-toothed cats that roamed North America in the late Pleistocene found that they were living well off the fat of the land in the ...
Archaeology
Dec 26, 2012
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U.S. authorities on Friday gave wildlife managers in Washington, Oregon and Idaho permission to start killing hundreds of sea lions in the Columbia River basin in hopes of helping struggling salmon and steelhead trout.
Ecology
Aug 15, 2020
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Cougars may have survived the mass extinction that took place about 12,000 years ago because they were not particular about what they ate, unlike their more finicky cousins—the saber-tooth cat and American lion. Both perished ...
Archaeology
Apr 22, 2014
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(AP) -- As long as American Indians have lived in the Pacific Northwest, they have looked to a jawless, eel-like fish for food.
Ecology
Aug 2, 2011
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(PhysOrg.com) -- Parasites and pathogens infecting humans, pets and farm animals are increasingly being detected in marine mammals such as sea otters, porpoises, harbour seals and killer whales along the Pacific coast of ...
Ecology
Feb 20, 2012
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