The animal is classified as a vertebrate
The answer is:-
He had a backbone
An animal is classified as a vertebrate if it has a backbone.
Vertebrate animals are those that possess internal bony structures known as backbones.
The backbone consists of a series of vertebrae joined together, allowing the animal to move and acting as a pillar to support its body.
This spine protects the spinal cord, which contains all the nerves that control animal movement and vital functions.
Thanks to a backbone, vertebrate animals can come in a variety of shapes and sizes and live in a variety of environments.
