well insects don't have backbones.they have exoskeletons thats. Cockroaches for example dont have back bones.Thats why when you squish them there is a crunch sound
They must. If I am wearing a pair of high heels or flats with a thin leather sole I can feel something breaking up under my shoe. I hate cockroaches so if I am smushing up bones I think that's sorta funny.
No there is more with backbones
it has 2 backbones
No backbones
Pigs do have backbones.
All snakes have backbones.
The backbones are part of the skeleton.
all fishes have backbones
no they don't have backbones
no myriapods don't have backbones
Yes, they do.