Its a nice major. I'm doing a minor in anthro, and my bro is a full blown anthro major. Here is what I recommend. If you haven't finished your GEs yet, take an anthro class to fulfill your GE requirements. The major is as scientific as psychology. There is science, just not in a test tube. [more stats, observations, field studies, predictions... blah blah blah]. Tests are usually essay format. If you take a GE class, you'll definetly see if you like it, or hate it. Some people can't stand it. Some people love it. There is a lot of about the theory of evolution. You can usually get a BA or a BS in anthro. BS (biological anthropology) actually requires Chem/Physics/OChem!!!.. [which I think is a waste of time for a BS in anthro! but gets your med school stuff out of the way.] Its closely related to a couple of fields... namely archeology, and primateology.
Ps. Usually an easy A. but there is a lot of reading assigned in most classes. Professors tend to be cool and adventurous, rather than boring. If you decide to do a BS, most of your professors have probebly spent much of their lifetime with monkeys/apes in the wild.. so they have a lot of interesting stories to share. [I'm not generalizing, you'd be suprized how many of my professors fit this "generalization"]. Overall, take a GE... see if you like it... Bio is definetly not for everbody.. it wasn't for me.. But I still wanted to get some exposure, and biological anthropology does help make ecology more interesting.
[keep in mind i'm doing a minor in biological anthro, so there is a lot of talk about bio related topics and primates in my classes.... regular anthro you'd talk more about early humans.......... waaaayy early.. around 15 million years ago early!]