Scientist Classification

Scientists Classify the animal kingdom. That means that they sort out alot of animals just like Vertebrates.

Vertebrates have a back bone same with birds,reptiles,amphibian's,fish and mammals. Since we are mammals we are warm blooded.
But invertebrates don’t have a back bone. They take over 97% of the animal kingdom as they are compiled into 7 groups. Arthropods 10 of the groups have an exoskeleton and a segmented body