The term 'Zoological Suffix' refers to a group of suffixes used in the scientific naming of animals. The solutions for this crossword are ESS (3 letters), INI (3 letters), IDAE (4 letters), INAE (4 letters), PODA (4 letters), and OIDEA (5 letters). These suffixes are used to denote the taxonomic rank of an animal, such as family, genus, species, and subspecies. For example, the suffix '-idae' is used to denote a family, while the suffix '-inae' is used to denote a subfamily. The suffix '-oidea' is used to denote an order, and the suffix '-poda' is used to denote an order of arthropods. Finally, the suffix '-ini' is used to denote a tribe, and the suffix '-ESS' is used to denote a female individual.