The BIG difference between the vertebrates and the invertebrates animals is that VERTEBRATE animals have a BACKBONE.
Fish and birds, alligators too.
Monkeys and gorillas, tigers too.
Whales and dolphins, little mice too.
Don't forget the kangaroo.
We call them:
vertebrates, vertebrates they all have a backbone.
Vertebrates, vertebrates ,this is true.
Vertebrates, vertebrates they all have a backbone.
They all have a backbone, so do you.