Genetics: Do not. Unless cheek swabs?

Chemistry: NO!!!!! DO NOT!!!!!!

Archaeology: Perhaps. But might be human bone.

Geology: Sometimes needed, sometimes dangerous 

Psychology: Best not.

Physics: ????????? How??????

Zoology: In zoology, science licks you. 

Anthropology: Maybe ask first.

Herpetology: bad plan bad plan BAD PLAN

Sociology: Yes, if you have time and dedication and a willingness to piss a lot of people off.

Botany: You might hallucinate or die, OR it might be delicious

Computer Science: the tingle of electricity on your tongue is how you know it’s working

Epidemiology: FOR THE SAKE OF THE WORLD PLEASE DO NOT

Linguistics: Despite the name, please probably don’t.

Engineering: Maybe, but it’ll probably taste like spreadsheets 

Software engineering: nothing else has made the code work so you might as well try it

Neuroscience: that is someone’s brain. no. do not

Marine biology: you can try, but you’ll probably just get a mouthful of seawater

Astronomy: look, if your dedication to lick Uranus is what it takes get humankind to another planet, then so be it

okay but seriously you can lick the linguistics it’ll just maybe taste terrible