are gorillas and apes the same?
Gibbons, or lesser apes, are small (averaging about 15 pounds) and all the great apes are much larger. There are four species of great apes: gorillas, orangutans, and two species of chimpanzee, the common chimpanzee and the bonobo or pygmy chimpanzee. ... Gorillas are much larger, ranging anywhere from 200 to 400 pounds.