Avian Flu Wiped Out Poultry. Now the Screwworm Is Coming for Beef.
The parasitic fly that attacks warm-blooded animals was eliminated from the United States in the 1960s, but it’s creeping toward the Texas-Mexico border.
The parasitic fly that attacks warm-blooded animals was eliminated from the United States in the 1960s, but it’s creeping toward the Texas-Mexico border.
