But some say clean-up of deadly Vietnam War-era chemical is too little, too late
Our ancestors lived alongside at least two other types of primitive human, say researchers
Victor Conte believes doping is rife and that tests at the Games won't catch cheats
Lovell was a ground-breaking astronomer and founder of the Jodrell Bank observatory
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PETA accused of putting animals before humans following campaign to ground primate flights
It's not just bird flu we have to worry about: existence of H3N8 in seals shows flu can emerge 'from anywhere'
WHO takes action after 14 people die in western Uganda, and there are fears Ebola has spread to the capital
A bloated animal corpse washed up in Manhattan has prompted wild speculation about its identity
Nearly all of Greenland's ice sheet began to melt for a few days in July. Is climate change to blame?
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The Skagit River bridge on the Interstate 5 highway linking Seattle and Vancouver suddenly collapsed last night, throwing vehicles and occupants into the water. There were no fatalities reported.
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