Therianthropy refers to the fantastical, or mythological, ability of some humans to change into animals. Therianthropes are said to change forms via shapeshifting. Therianthropy has long existed in mythology, and seems to be depicted in ancient cave drawings such as The Sorcerer, a pictograph executed at the Palaeolithic cave drawings found in the Pyrénées at the Les Trois Frères, France, archeological site.
‘Theriocephaly’ (Gr. “animal headedness”) refers to beings which have an animal head attached to an anthropomorphic, or human, body; for example, the animal-headed forms of gods depicted in ancient Egyptian religion (such as Ra, Sobek, Anubis).
Source: Therianthropy – Wikipedia