Atomic map reveals clues to how cholesterol is made

In spite of its dangerous reputation, cholesterol is in fact an essential component of human cells. Manufactured by the cells themselves, it serves to stiffen the cell's membrane, helping to shape the cell and protect it. ...

Icebergs once drifted to Florida, new climate model suggests

Using a first-of-its-kind, high-resolution numerical model to describe ocean circulation during the last ice age about 21,000 year ago, oceanographer Alan Condron of the University of Massachusetts Amherst has shown that ...

Australian beaches evacuated after suspected shark attack

Several beaches were closed in Western Australia Sunday after a suspected shark attack on an inflatable boat, officials said, just a week after a surfer had parts of his arms bitten off in a separate mauling.

Researchers compare efficacy of 'natural' bed bug pesticides

Concerns over human-insecticide exposure has stimulated the development of alternative bed bug control materials, and many essential oil-based pesticides and detergent insecticides have been developed in recent years. But ...

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