A Purebred animal is an animal that is its own breed and isn't mixed with any other animal. A hybrid is an altered animal or an animal that is a mixed breed. An example of a hybrid would be the Indominus Rex. The rex was designed and altered by scientist in the lab.
A mutation is something that is genetically changed. The scientist wanted the dinosaur to have more teeth and to be stronger, so they mutated the DNA to make the Dinosaur how they wanted it.
An adaptation is the way an animal changes