World population to surpass 7 billion in 2011

Global population is expected to hit 7 billion later this year, up from 6 billion in 1999. Between now and 2050, an estimated 2.3 billion more people will be added—nearly as many as inhabited the planet as recently as ...

The dance of the cells: A minuet or a mosh?

The physical forces that guide how cells migrate—how they manage to get from place to place in a coordinated fashion inside the living body— are poorly understood. Scientists at the Harvard School of Public Health ...

Mercury on the rise in endangered Pacific seabirds

Using 120 years of feathers from natural history museums in the United States, Harvard University researchers have been able to track increases in the neurotoxin methylmercury in the black-footed albatross (Phoebastria nigripes), ...

Prospective voters and the new health care law

A comprehensive review of national opinion polls, including newly released data, shows that those who say they intend to vote for a Democratic congressional candidate in 2010 and those who say they intend to vote for a Republican ...

A molecule that destroys normal metabolism is found

Overeating in mice triggers a molecule once considered to be only involved in detecting and fighting viruses to also destroy normal metabolism, leading to insulin resistance and setting the stage for diabetes. The new study, ...

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