Zoology is the branch of biology that studies animals. It encompasses the study of animal anatomy, physiology, behavior, genetics, evolution, classification, distribution, and ecology.

Key aspects of zoology include:

• Animal Anatomy: The study of the structure of animal bodies.
• Animal Physiology: The study of the functions and processes of animal bodies.
• Animal Behavior: The study of how animals interact with each other and their environment.
• Genetics: The study of heredity and the variation of inherited characteristics.
• Evolution: The study of how animals change over time.
• Classification (Taxonomy): The science of naming and grouping animals.
• Distribution (Biogeography): The study of where animals live and why.
• Ecology: The study of how animals interact with their environment.

Zoology is a broad field with many sub-disciplines, such as entomology (the study of insects), ornithology (the study of birds), and mammalogy (the study of mammals).