There is the long standing joke around the Geeks and Jocks. The don't usually have sex with each other. Genetically they have even diverged with genetic att

There is the long standing joke around the Geeks and Jocks. The don't usually have sex with each other. Genetically they have even diverged with genetic attributes that you typically find in one and not the other. They are even more successful at having grandchildren if they mate their "own type" due to to certain genetic combinations that both parents will give to the kids. Are they two species?