I think it's actually a bit ridiculous to change race and species.
Species = A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
In other words, if you mate members of two different species, they don't have offspring.
Race = A concept used to describe a group of people who share physical characteristics, such as skin color and facial features. They may also share similar social or cultural identities and ancestral backgrounds. There are many racial groups, and a person may belong to or identify with more than one group.
In other words, if you mate members of two different races of the same species, they produce offspring.
