M E C H A N I C A R M
Plant science is so under-rated! I think that's cause they teach it so badly at school. Genetically speaking plants are so much more fascinating! It's such a shame people tend towards zoology then phytology. ='[
Plant are amazing. They're huge dicks taxonomically, but genetically they're pretty cool. Studying plants on my own is how I first read about horizontal gene transfer.
I've always been amazed at how plants communicate with each other to an extent via chemical signals. For example, if you've ever heard the advice to put an unripe fruit in a bag with a ripe fruit in order to ripen it up, that's due to one of those chemical signal adaptations - ripe fruits of almost all plants emit the same chemical signal, telling other fruits on the same tree or nearby trees to begin ripening as well.
I think part of why it's so under-rated is because most people take plants for granted. We're surrounded by them. Everywhere we go, we see plants. They're just a given for most people, whereas zoology is interesting to people because they get to deal with animals they'd rarely if ever see otherwise.