The Chimaera fish has no bones in its body; its skeleton is made of cartilage.
Creatures of the Deep: Chimaera
This creature was found 4,200 feet deep in the ocean. It’s called the Chimaera. This fish has no bones in its body. Its skeleton is made of cartilage. The dots on its face are sensory organs that detect electrical fields in the water, helping the Chimaera find its prey. By living in deep water, far from our coasts, the Chimaera is accustomed to lurking in the dark.