yes, all mammals do
NO! gerbals are dominate animals so if you put a mouse in your gerbals cage be prepared to wake up in the morning with a half eatan mouse in front of you
yes gerbils are very friendly
No there is more with backbones
No backbones
Pigs do have backbones.
it has 2 backbones
All snakes have backbones.
all fishes have backbones
no they don't have backbones
The backbones are part of the skeleton.
no myriapods don't have backbones
Yes, they do.