Malacology: study of mollusks
Mammalogy: study of mammals
Nematology: study of nematodes and roundworms
Ornithology: study of birds
Paleozoology: study of fossil animals
Pathology: study of diseases or injuries
Primatology: study of primates
Protozoology: study of microscopic organisms
Taxonomy: study of nomenclature and classifications
Zoogeography: study of geographical distribution of animal species
Zoography: study of animals and their habitats
Zootomy: study of animal anatomy (internal structure)