Humans are beasts...they are classified as being "homosapiens et homoerectus".
Simple latin, if you hadn't taken it in school, homosapien means intelligent man, or knowing man...depends on how you translate. Monkey's are intellegent. They are able to play chess, read, decipher simple colors and patterns just as humans are. Monkey's are beasts.
Homoerectus (erect, hehe) means they stand and walk on two's. Also commonly defined as being bipeds. Monkey's aswell have been known to walk on two feet.
Em....anything else I need to add?