Types of Apes, Gibbons, Gorillas, Orangutans, Chimp

There are two main types of apes: "lesser apes" and "great apes". Lesser apes include mainly all gibbon species, whereas the Great apes include orangutans, gorillas, chimpanzees, and bonobos.

Orangutan San Diego Zoo Animals & Plants

Facts About Apes

Great Apes are kin, not ancestors – Safarizona

The orangutan who speaks like a human

Buy Apes (9780954307028): Gorillas, Chimpanzees, Orangutans and Gibbons: NHBS - Ray Hutchins, Merlin Publications

Apes

Asian Apes At-A-Glance New England Primate Conservancy

Example images from two categories in Exp. 2: gibbons (A–D) and

The Leakey Foundation Five Fun Facts About Gibbons

Monkeys vs Apes: How are they different? - PASA