Scientists first figured the claw-tipped, giant arm bones found in 1965 belonged to an ostrich-like dinosaur. But its recently recovered skull looks more like a dino designed by a committee — of kids.
The North Carolina coast may be the last place you'd think to find a sunken German submarine from World War II. But that's what Joe Hoyt — a nautical archeologist — found on a recent expedition to the ocean floor. Robert Siegel talks to him about the underwater battle site there.
The DNA in this ancient Siberian leg bone shows that the man had Neanderthal ancestors — yet more proof that humans and Neanderthals interbred. And he lived much farther north than expected.
Just because the Food and Drug Administration recalls a supplement because it contains dangerous substances doesn't mean the product disappears from the market.
The World Health Organization says two vaccine candidates now undergoing small-scale tests of dosage and safety in people might be ready for broader deployment in Africa by early 2015.
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