Most internal parasites of horses are worms, but bots are the larvae of a fly that needs a horse to complete its life cycle. This parasite spends most of its life fastened to the inside of the host ...
The parasite’s scientific name is Cuterebra emasculator, which, from its Latin roots, translates as skin-boring testicle remover. In 1856 Asa Fitch (the nation’s first professional entomologist) ...