Unravelling the reasons why mass extinctions occur

Scientists from the University of Leicester have shed new light on why mass extinctions have occurred through history—and how this knowledge could help in predicting upcoming ecological catastrophes.

Early warning signal for ecosystem catastrophe detected

Researchers eavesdropping on complex signals emanating from a remote Wisconsin lake have detected what they say is an unmistakable warning -- a death knell -- of the impending collapse of the lake's aquatic ecosystem.

Deadly invader devastating Venezuelan coral reefs

An ominous shadow in the turquoise Caribbean waters off Venezuela comes from a deadly intruder—a soft coral that experts say has caused one of the most destructive habitat invasions on record anywhere.

Bangladesh oil spill 'threatens rare dolphins'

Bangladesh officials warned Thursday that an oil spill from a crashed tanker is threatening endangered dolphins and other wildlife in the massive Sundarbans mangrove region, branding the leak an ecological "catastrophe".

Crews struggle to clear toxic Hungary sludge flood

(AP) -- There was no stopping the avalanche of toxic red sludge when it rammed into Kati Holtzer's home: It smashed through the main door and trapped the woman and her 3-year-old boy in a churning sea of acrid waste.

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