For the first time, scientists have scanned the brain of a long-extinct animal.
Previously only dead specimens had been found.
Little marine worms are hugely expensive.
His choice, Scott Pruitt, is an outspoken critic of the agency and a global warming skeptic.
A new test that spots this deadly mutation can save dairy farmers millions.
Leprosy was passed from humans to squirrels long ago, and may be passed back again.
A newly discovered inch-long millipede has more legs than the chorus line at Radio City Music Hall.
Some common insecticides alter plants' genetics, making them more vulnerable to tiny, destructive arachnids.
More than 10 percent of the fewer than 1,500 remaining animals have been destroyed.
Representing certain properties as musical notes offers insight into protein folding.
Hexavalent chromium is known to cause several types of cancer in humans.