• humans come from homo erectus 
• prosimions consit of leeemurs 
• old world monkeys consist of babons 
• neww world monkeys are spider monkeys 
• great apes are gorillas and arangatangs 
• chimpanzees are active during the day time 
• social organization 
• live in communities 
• mating 
• sex is promiscuous 
• courtship does exist 
• high ranking female chimps have more offspring 
• males prefer to mat with older, expirenced women 
• communication 
• complex system of vocalizations 
• body language 
• human like facial expressiones 
• chimpanzes are male dominant