Essentially the same as that in any other vertebrate - including us. It is the central column of the skeleton, and the conduit for the nerve-bundle that is the spinal cord.
No there is more with backbones
Pigs do have backbones.
No backbones
it has 2 backbones
All snakes have backbones.
all fishes have backbones
The backbones are part of the skeleton.
no they don't have backbones
no myriapods don't have backbones
Yes, they do.
Yes, jaguars, like all other mammals, have backbones. The backbone, also known as the spinal column, provides support and protection for the spinal cord, allowing the jaguar to move and function properly.
All dinosaurs had backbones.