How something called a screwworm threatens your dog. Is it headed to the U.S.?
The U.S. Department of Agriculture is extremely worried about the arrival in the U.S. of a fly larvae called the New World ...
来自MSN9 个月
Dog-killing worms found in California for the first time: Scientists discover hundreds of ...
Scientists have discovered dog-killing worms in Southern California ... profound weight loss, and signs of liver disease. 'If your dog has these symptoms after swimming in the Colorado River ...