Gray whale numbers remain greatly reduced: study
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The Pacific gray whale population, thought by some experts to have rebounded fully from the ravages of whaling, actually is back to a mere fraction of historic levels, scientists said on Monday.
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Scientists who spent nearly a month in  a fruitless search for a Chinese river dolphin that is more  endangered than the Giant Panda say there may be no more than  50 left alive, the Xinhua news agency said on Saturday.
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Most of the western Great Lakes population of gray wolves was removed from the Endangered Species Act on Monday.  (c) 2007 Bismarck Tribune. Provided by ProQuest Information and Learning.
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NEW HAVEN, Conn. -- The spread of Lyme disease and other ailments could be reduced by vaccinating wildlife, according to a new study by Yale University and three other colleges.
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The eastern Pacific gray whale may not have recovered to its pre-hunting level, as has been believed.
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North American bison populations suffered a sharp decline long before humans inhabited the continent, indicating that environmental factors, not hunting, wiped out the animals, according to a study published in the journal Science.
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Humpback whales have a type of brain cell seen only in humans, the great apes, and other cetaceans such as dolphins, U.S. researchers reported on Monday.
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Science & environment: Number of Indian wild tigers has dwindled to about 1,400, less than half the previous estimate
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The declining number of dark sheep among a wild herd in Scotland comes down to genes, researchers said on Thursday.
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By Anonymous  In a new report, the National Oceanic and Atmospheric Administration's (NOAA's) National Center for Coastal Ocean Sciences has found a continuing decrease in toxic organic chemicals in mollusks, specifically mussels and oysters, collected at more than 230 sites nationwide.
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More than 30% of North America's bird populations are in "significant decline" according to conservationists.
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One of the great success stories of the ocean, the return of the Pacific gray whale, may have been based on a miscalculation, scientists reported Monday in a study based on whale genetics.
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WASHINGTON - Sperm whales routinely dive more than two miles below the ocean surface to hunt for giant squid, but a study shows the huge mammals suffer a chronic loss of bone tissue from the bends, a painful condition well-known to human divers.
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The Pacific gray whale population,  thought by some experts to have rebounded fully from the  ravages of whaling, actually is back to a mere fraction of  historic levels, scientists said on Monday.
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Climate change could be disastrous for  some animals, but male gray seals are probably not complaining  -- it has improved their sex lives.
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By Grand Forks Herald, N.D.  Feb. 4--North Dakota doesn't have a resident gray wolf population, but the Game and Fish Department is developing an action plan to deal with the species after it's removed from federally protected status in the eastern two-thirds of the state.
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Washington - About one third of amphibians are under threat of extinction, according to researchers who carried out a global census.