As defined by Indiana University , this is the scientific study of everything animals do, focusing on the causes, functions, and evolution of those actions.
This phenomenon, known as the , is one of the most challenging aspects of veterinary practice. A dog that suddenly starts urinating in the house may be acting out due to anxiety, or it may be developing kidney failure or diabetes. A cat that stops using the litter box may be "behavioral," or it could be suffering from excruciating bladder stones or arthritis that makes stepping over the rim of the box painful. wwwzoophiliatv sex animal an new