What I think is absolutely insane is that neuropeptide F (NPF) is a homologue of our neuropeptie Y.

The fruit flies that have lower levels of NPF tends to drink ethanol more that the ones with higher levels. And there are also some studies, that uncover connestion between alcohol consumption and our neuropeptide Y.

How cool is that?

Btw, few minutes ago I made a tutorial post about how to draw Neuropeptide F. I mean, dont take it as a self-promotion, I just think it is a funny co-incidence :D