https://www.law.cornell.edu/definitions/uscode.php?width=840&height=800&iframe=true&def_id=18-USC-1094092565-1353786280&term_occur=999&term_src=title:18:part:I:chapter:3:section:48
“animal crushing” means actual conduct in which one or more living non-human mammals, birds, reptiles, or amphibians is purposely crushed, burned, drowned, ...