Because they have a backbone, no...
This is a mammal and a vertebrate.
A rat is a vertebrate, meaning it has a backbone and an internal skeleton.An animal which is not classed as a vertebrate is known as an invertebrate, rather than a "non-vertebrate".
Vertebrate. All mammals are vertebrates. An invertebrate has no bones. Earthworms, snails, and caterpillars are examples of invertebrates.
invertebrate - has exoskeleton
An invertebrate.
seriously? wow....... did you pass 4th grade? invertebrate
A bullfrog is not an invertebrate; it has a spine.
The octopus is an invertebrate... It has no skeleton.
no
It is an invertebrate 
Crabs are invertebrate!Say the yeti crab has no backbone or spine so it is an invertebrate! Not vertebrate.Yes, all crabs are invertebrates, having an external skeleton (exoskeleton).
An invertebrate doesnt have a backbone. A vertebrate has a backbone.