The study of animal life.
Anatomy: Study of the physical structure and internal workings of animals.
Physiology: Study of the functions and processes of living organisms and their parts.
Behavioral ecology: Study of how the behavior of animals is influenced by their environment and interactions with other animals.
Evolution and adaptation: Study of how species evolve and adapt over time in response to changes in their environment or other pressures.
Classification and systematics: Study of how animals are organized and classified based on their evolutionary relationships and physical characteristics.
Genetics and gene expression: Study of how genes and genetic traits are inherited and expressed in animals.
Ecology and conservation: Study of how animals interact with their environment, and efforts to protect and conserve species and their habitats.
Animal behavior: Study of how animals act and communicate with each other and their environment, including mating, social behavior, and communication.
Ethology: Study of the behavior of animals in their natural habitats, including their social organization and communication.
Developmental biology: Study of how animals develop from fertilized eggs into mature organisms, including gene expression and environmental factors.