Zoology is the scientific study of animals, including their behavior, physiology, genetics, evolution, classification, and ecology. Zoologists study animals at all levels, from individual cells and molecules to entire ecosystems, and seek to understand the diversity of animal life on earth and its relationships to the environment.

Zoology is a broad field that encompasses many different sub-disciplines, such as comparative anatomy, ethology, genetics, ecology, and evolutionary biology. Zoologists use a range of methods and techniques to study animals, including observations in the field, experiments in the laboratory, and analysis of data from molecular, genetic, and other sources.

The study of zoology has practical applications in many areas, such as wildlife conservation, veterinary medicine, and agriculture. Zoologists work in a variety of settings, including universities, museums, research institutions, and government agencies, and may also be involved in education and public outreach to promote awareness of animal conservation and welfare.