Study: Return of Wolves Changes Ecosystem
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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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For campers at Isle Royale National Park, sighting a gray wolf is a rare and thrilling experience. At least, it has been.
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Reseachers have linked the survival of the Acacia tree-ant relationship to Africa's big browsing mammals
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The more time people spend surfing the web and watching TV, the less time they spend in nature. And that loss of contact eventually lessens their interest in protecting the natural environment, a new study claims.
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Global warming could cut a swathe through the planet's species over the coming centuries, warns a study released Wednesday that shows a link between rising temperatures and mass extinctions reaching back half a billion years.
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By Deirdre Fleming Staff Writer  Imagine hunting bald eagles before they were listed as endangered in 1967, or gray wolves before their numbers vanished from the landscape here.
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A VITAL lifeline is being thrown to woodland creatures in the region threatened with extinction.  Some butterflies and moths are in severe decline, but the Forestry Commission is taking action to improve their plight.
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A century after they were wiped out by  hunters and a burgeoning population, wolves have returned to  parts of eastern Germany as factories close down, businesses  fail and people move out.
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Major shifts in the British marine environment are being partially driven by climate change, according to a new report.
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Officials in three states have said they will to allow hunting&#8212;which could reduce wolf numbers back to dire levels&#8212;if the creatures lose their protected status.
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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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Scientists say a bacterial disease that can affect mammals, including humans, may be behind an increase in sea lions found dead on Oregon beaches recently.
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A five-year study of South Carolina pine forests offers proof of the widely practiced but controversial theory that corridors linking nature reserves help species diversity.
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A proposal to delist wolves as 'endangered' would put them back in hunters' line of fire, critics say.
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Western states grapple with how to address an increasing threat to livestock from wolves and big cats.
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Frogs, butterflies, polar bears, and penguins are dying out from climate change much faster than researchers had previously expected, a new study shows.
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Ancient bison DNA may help explain a longstanding mystery of North American wildlife: why mammoths, North American lions, short-faced bears and many other large mammals disappeared about 10,000 years ago.