"Peyo The Stallion Often Visits Terminally Ill Patients At The Teaching Hospital In Calais France, He Chooses Which Patients To Visit By Knocking His Hoof Outside The Door"
"Scientists are studying Peyo's potential ability to detect cancer in humans and reduce a patient's anxiety.
Additional brain imaging research has indicated that aspects of Peyo's neurological activity may be unique from other horses. "
#21 goes for cats in general