Orangutan - Wikipedia
About Orangutans - SOS – Sumatran Orangutan Society
Orangutans Use Simple Tools to Catch Fish | WIRED
Orangutans and otters pictured playing together in photos shared by Belgian zoo | CNN
Orangutans can learn how to use stone tools as hammers and knives | New Scientist
Orangutan From Borneo Photographed Using A Spear Tool To Fish, Imitating Local Fishermen | WowShack
Clever orangutans invent nutcrackers from scratch
Bornean Orangutan Toy, lb - Pay Less Super Markets
Orangutans Make Tools Better Than Kids, Study Finds
Sumatran orangutan tool use Stock Photo - Alamy
Saint Louis Zoo | Sumatran Orangutan
Orangutans make musical instrument
Orangutans hook up tool-based solutions quicker than human kids | BBC Science Focus Magazine
Orangutan guide | BBC Wildlife Magazine | Discover Wildlife
Orangutans Have a Big Idea | Science | AAAS
Orangutans: Tool Use | PBS LearningMedia
Orangutans show pre-requisites for stone tool technologies | University of Tübingen
Karen (orangutan) - Wikipedia
Watch: This wild orangutan worked out how to use a carpentry tool she had never even seen before
Orangutan Learns to Saw Wood - YouTube
Intelligence and Innovation - Orang Utan Republik Foundation
In Orangutan Parenting, the Kids Can Get Their Own Dinner - The New York Times
Bio 342 Fall 06
Tool-Using Orangutans Learn Like Humans | WIRED
Orangutan Behaviour - Orangutan Foundation International Australia
