@Azifri
Ah, population genetics! It would probably be the easiest for me to teach.
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I could also teach general biology to undergrads. And plant pathology, well, that's what I have a PhD in, I would be at ease I suppose, but I don't like it as much as population genetics.
Plus anything related to vegetable farming in cold climates.
I mean, theoretically. If that did not mean actually seeing people 

