News
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PlantsIt Takes a Village: Tweaking neighbors reroutes evolution
The other residents of a plant's neighborhood can make a big difference in whether evolutionary forces favor or punish a plant's trait.
By Susan Milius -
Hold the Embryos: Genes turn skin into stem cells
Scientists have found a way to convert a person's skin cells directly into stem cells without creating and destroying embryos.
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PaleontologyA toothy smile
Nigersaurus boasted more than 500 teeth, arranged in rows across its mouth.
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Tadpole Slayer: Mystery epidemic imperils frogs
An emerging protozoal disease has begun to trigger mass die-offs of frog tadpoles throughout much of the United States.