Study: Black bears are eating pumas' lunch

A camera-trap study in the Mendocino National Forest in Northern California reveals that black bears are adept at finding and stealing the remains of adult deer killed by pumas. This "kleptoparasitism" by bears, as scientists ...

Mathematical epidemiology: How to model a pandemic

Disease has afflicted humans ever since there have been human. Malaria and tuberculosis are thought to have ravaged Ancient Egypt more than 5,000 years ago. From AD 541 to 542 the global pandemic known as "the Plague of Justinian" ...

China vows faster, cheaper Internet

China has said it will aim to bring faster and cheaper Internet access to more people, following complaints that a near monopoly by state-backed firms had hurt service.

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