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Genetics

Bones show Dolly’s arthritis was normal for a sheep her age

Cloning didn’t cause the famous sheep to age prematurely.

Health & Medicine

Step away from the cookie dough. E. coli outbreaks traced to raw flour

Flour, though low in moisture, can sicken people with E. coli toxins if it is eaten raw.

Animals

Seeds coated in a common pesticide might affect birds’ migration

Eating small amounts of a neonicotinoid pesticide can disorient white-crowned sparrows.

Plants

The dietary habits of the emerald ash borer beetle are complicated

Tests answer some questions about the emerald ash borer’s hidden taste for olive and fringe trees.