US accuses North Korea of Sony hack (Update)

The United States said Friday that North Korea was behind a cyber attack on Sony Pictures, warning that those responsible would face punishment, as an envoy for Pyongyang again denied involvement.

8 hours ago
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Trade winds ventilate the tropical oceans

Long-term observations indicate that the oxygen minimum zones in the tropical oceans have expanded in recent decades. The reason is still unknown. Now scientists at the GEOMAR Helmholtz Centre for Ocean Research ...

11 hours ago
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A vegetarian carnivorous plant

Carnivorous plants catch and digest tiny animals in order and derive benefits for their nutrition. Interestingly the trend towards vegetarianism seems to overcome carnivorous plants as well. The aquatic carnivorous bladderwort, ...

11 hours ago
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