This review is an attempt to show the worldwide ectoparasitic burden in deer and antilopes with the aid of some case samples. Animals kept in zoos, lodges/ breeding farms and also in the wild, can considerable suffer and die under the burdens of parasites. The environment plays at this certainly an important role, too. Grooming and mutulism (a symbiotic relationship between two species of organism where both organism benefit from the association), vegetation and climate are only some of these factors. Not least, it should be also mentioned, that certain diseases, which can be transferred by parasites, can not only have intraspecific, but also extraspecific transmission possibilities.