Ape is an imprecise designation. In English, it means to mimic the work of one's better. Thus, the term was applied to gibbons and great apes since they resemble human form but lack our intellect and abilities. There are three primary species of ape: gorillas, orangutans and chimpanzees. Gorillas are the largest and strongest while orangutans and chimpanzees are more intelligent. Apes are beautiful creatures and an excellent subject for posters.