While they overlap, these fields focus on different aspects of animal life:

Stereotypic behaviors (abnormal repetitive behaviors) indicate poor welfare.

: Provides an authoritative, free Overview of Behavioral Medicine which detailes the integration of ethology into clinical practice.

This specific title refers to a known series of videos produced by a site called Zooskool, which features explicit depictions of humans engaging in sexual acts with animals, primarily dogs. Legal and Ethical Context Criminal Status:

Subtle behavioral changes are often the first indicators of disease: