yes they do, there mammals
They have backbones so they are vertebrates
All bears have backbones and therefore, by definition, are vertebrates. Just as you are.
All animals with spines are vertebrates, and polar bears have spines.
No there is more with backbones
Yes. Like all mammals, bears are vertabrates.
No backbones
Pigs do have 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