Global warming said killing some species
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Animal and plant species have begun dying off or changing sooner than predicted because of global warming, a review of hundreds of research studies contends.
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DNA analysis of bison fossils suggests climate and environmental change, not human hunters, triggered herd declines and the extinction of mammoths, saber-toothed cats, and other large mammals in Siberia and North America.
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Species in the air and on the ground are in deep trouble, according to two recent studies tallying steep declines in bird and amphibian populations. Scientists are speculating about the causes.
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Two studies say global warming is responsible for a shifting coastline and visits from Arctic seals.
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Ecologists fear that global warming will make protected landscapes  inhospitable to prized species.
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Scientists studying the broader effects of wolf reintroduction said a growing body of evidence suggests that killing off predators such as wolves and grizzly bears in the last century started a cascade of effects that threw ecosystems out of balance.
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Heathland species are in danger of extinction because of poor habitat, conservationists warn.
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Berkeley - A University of California, Berkeley, paleobiologist and his colleagues warn that the future of the Earth&#39;s mammals could be as dire as it was between 50,000 and 10,000 years ago, when a combination of climate change and human pressure resulted
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Declining populations of common birds could be the harbinger of bigger environmental problems, a study by the National Audubon Society concludes.
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The next century definitely will not be for the birds as the changing world takes a toll on many species. By 2100, about 10 percent of all bird species probably will be extinct, killed off by habitat loss, hunting
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The planet's temperature has climbed to levels not seen in thousands of years, warming that has begun to affect plants and animals, researchers report in Tuesday's issue of Proceedings of the National Academy of Sciences.
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Unless urgent action is taken to slow down global warming polar bears will be extinct by the end of the century. The stark warning is contained in an authoritative report compiled by more than 250 scientists on the effects of climate change in the Arctic.
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Rising temperatures in the Arctic will likely increase the region&#39;s biodiversity as new species are drawn to the extreme north, but in a dramatic paradox many animals unique to the region, such as polar bears, risk extinction.
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A new study finds more than a thousand types of plant, bird, mammal and invertebrate are now endangered.
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Ice caps are melting on both Earth and Mars. According to one researcher's controversial theory, this suggests that global warming has nothing to do with humankind.
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Amphibians such as leopard frogs and salamanders are threatened with extinction as their homes dry up and a new disease spreads, possibly as a result of global warming, according to a new study in Science magazine.
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Â· Up to 900 threatened by 2050, says global analysisÂ· Habitat loss dwarfs effects of climate change