What is "bestiarii"

Among Ancient Romans, bestiarii (singular bestiarius) were those who went into combat with beasts, or were exposed to them. It is conventional to distinguish two categories of bestiarii: the first were those condemned to death via the beasts (see damnatio ad bestias) and the second were those who faced them voluntarily, for pay or glory (see venatio). The latter are sometimes erroneously called gladiators; to their contemporaries, however, the term gladiator referred specifically to one who fought other men. The contemporary term for those who made a career out of participating in arena "hunts" was venatores.