tl;dr: There are 720 variations of the animal that have different sexual reproduction limitations with each other. They have the same anatomy but differ on the DNA level.
No. It's just a small part of the DNA (like male vs female in most animals). The organism that can't reproduce with another organism still came from two of the same organisms.
tl;dr: There are 720 variations of the animal that have different sexual reproduction limitations with each other. They have the same anatomy but differ on the DNA level.