[Reeses]

H. sapiens

HOMO sapiens? It's not like homo is a long word. Out of favor?

[Doctor Stochastic]

Genera are usually abbreviated such as in H.Pylori. (Personally I like to write them out for the Boethians.)

[Right Wing Professor]

HOMO sapiens? It's not like homo is a long word. Out of favor?

No, just convention to abbreviate the generic name when you're discussing species within a single genus. I'm not Homophobic (at least not in this sense).