It could be posted next to biology.
I've been wondering about some biology related subforums, but I am not sure if there is a real demand to make them. I mean, it is nice and cozy in biology right now :)
maybe:
Biology, for human physiology
Genetics, for evolution and genetic questions
Molecular Biology, for lab techniques
Microbiology, for microorganisms
something like that? there are so many catagories that can be made, but it should be kept simple.