Ok. So this is a hard class. The lab is very long and the lecture exams are also somewhat intense (especially the first one.) That being said, professor Dines is a very good lecturer and his exams are solely based on his lecture materials which is good because there aren't any readings. The lab is more pure memorization, but there is a LOT to memorize. This isn't an easy class that you just take for the grade. I took Chem 14C along with this class, and I put twice as much work into this than into ochem. But I learned so much and genuinely really enjoyed the class, so I'd recommend it to someone who actually loves animal physiology & evolution.