👉 Choreoid, also known as a chemocephalic or a hemiconcave body shape, is a unique anatomical feature in mammals that refers to an elongated head with a narrow neck and a narrow chest. It is characterized by a flattened skull and a wide nasal passage, which allows for the development of a large brain. This is often seen in mammals such as humans, dogs, cats, and some birds. The term "choreoid" comes from the Greek word "
