the branch of biology that studies animals
"After graduating from college, she decided to pursue a career in zoology by studying animal behavior at a local university."
The part of biology relating to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct.
"After years of working in zoology, Dr. Aris finally published her groundbreaking research on the evolutionary adaptations of prehistoric marine mammals."
Zoology comes from the Ancient Greek words zōîon, meaning "animal," and lógos, meaning "knowledge." The term originally referred to the study or knowledge of animals.