Which aspect is not typically studied in animal physiology?

Animal physiology primarily focuses on the functions and processes that occur within an animal's body, which includes studying how systems like energy metabolism, reproductive systems, and neurophysiology work at various levels—from cellular to systemic.

Energy metabolism examines how animals convert food into energy and utilize it for various biological functions, which is fundamental to understanding overall animal physiology. Reproductive systems explore the physiological mechanisms behind reproduction, including hormonal regulation and reproductive cycles, crucial for species survival. Neurophysiology involves the study of the nervous system and how it influences behavior, reflexes, and other bodily functions.

In contrast, social behavior tends to delve into the interactions and relationships between individuals of the same species and how these affect their survival and reproduction. While certain physiological aspects might influence social behavior, the study of social behavior itself encompasses psychology and ethology more than it does strict physiological functions. Hence, it is not a primary focus of animal physiology.