News
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PaleontologyFossils of Flyers: Bones tell why Atlantic albatross disappeared
Ancient albatross fossils suggest that rising sea levels 400,000 years ago wiped out the North Atlantic population of short-tailed albatross.
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AnimalsYour Spiral or Mine? Snail gene reverses coil, makes new species
A snail with a shell spiraling to the right can't mate readily with a lefty, so changes in the single gene that controls shell direction have created new snail species.
By Susan Milius -
Health & MedicineCentenarian Advantage: Some old folks make cholesterol in big way
People who live to be nearly 100 and their offspring are more likely to have large cholesterol particles in their blood, a condition conducive to good health.