PUNXSUTAWNEY, Pa. — Groundhog Day predictions about the coming of spring put the spotlight on Punxsutawney Phil every Feb. 2, ...

Photo shows An image of a worker on a walkie-talkie in foreground blurry with large ship in focus in background.

Vaccines Tobacco Hepatitis B virus surface antigen (HBsAg) produced in transgenic tobacco induces immune response when injected into mice Oral ... Genetically modified animals have even been ...