Dog Extinctions Show Why Bigger Isn't Better
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Fossils from extinct dogs show why bigger is not better -- giant meat-eating animals died out because they relied too heavily on hunting other big animals, scientists reported on Thursday.
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Global biodiversity is shrinking at an unprecedented rate and the prognosis given by one of the world&#39;s leading conservation bodies, at the opening of a major environment conference here, is alarming.
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As the Arctic heats up sooner than scientists anticipated, animals like the polar bear are losing ground.
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Scientists analysing 25 years of data find some 80% of animals have extended the northern edge of their ranges.
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BERLIN, May 21 (IPS) - New scientific evidence confirms that human action,  such as carbon emissions causing global  warming, and  industrial-scale search for food, is decimating biodiversity -  and, in some  cases, is driving threatened species to evolve and  adapt at unexpected speed to new living  conditions.
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North American wildlife species  ranging from butterflies to red fox are scrambling to adapt to  Earth's rising temperatures and may not survive, according to a  study released on Monday.
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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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Giant kangaroos and wombats bigger  than cars which once roamed Australia were killed by climate  change and not human hunters, Australian scientists said on  Thursday.
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While a new environmental report gives a gloomy assessment of human management of the Earth, buried among its charts and graphs is one Andean success story that bucks the trend of a decline in wildlife species: the vicuna, a smaller, fleet-footed cousin of the camel.
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The number of threatened species on the planet is increasing at unprecedented rates across almost all major animal groups, according to the most comprehensive evaluation of the worldâs biodiversity ever undertaken.
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It hardly seems fair, but new research suggests that water creatures nimble enough to avoid being gobbled up by predators may harm their species more than help.
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Fossils suggest a worldwide cold spell millions of years ago caused the extinction of many cold-blooded animals in North America, thanks to a reverse greenhouse effect.
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Walking leashed dogs along woodland paths leads to a significant reduction in the number and diversity of birds in the area, a new study suggests.
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Whole species of animals from frogs to leopards, living in vulnerable areas and with nowhere else to go, face extinction due to global warming, scientists said on Wednesday.
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Urban sprawl is gobbling up open spaces in fast-growing metropolitan areas so quickly that it could spell extinction for nearly 1,200 species of plants and animals, environmental groups say.
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Â· Up to 900 threatened by 2050, says global analysisÂ· Habitat loss dwarfs effects of climate change
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Conservationists concerned about the extinction of plants and animals may be overlooking the danger to thousands of other species that depend on the threatened ones.