The U.S. has blocked imports of live cattle, horses, and bison through southern border ports following the resurgence in Mexico of the New World Screwworm, a parasitic fly that infects animals and ...

The threat of an invasive screw worm species could be harmful to Minnesota's pets and wildlife. Experts are urging residents to say alert for the New World screwworm, an aggressive fly whose maggots ...

Neanderthals may not have been the hyper-carnivores we thought they were. It has been claimed, based on the nitrogen isotope ratios in their bones, that our ancient relatives ate little besides meat.