Wild chimpanzee mothers teach young to use tools, video study confirms - The Source - Washington University in St. Louis
Oldest non-human stone tools outside Africa found in Brazil
What wild apes and children have in common
Apes may imitate but they struggle to innovate | New Scientist
Monkeys Make Stone "Tools" That Bear a Striking Resemblance to Early Human Artifacts - Scientific American
Chimps that use tools for complex tasks pass those skills on - Futurity
Chimpanzees Are Intelligent Enough To Use Tools Without Getting Help From Others
Bonobos use a range of tools like stone-age humans | New Scientist
Chimps Apply Insects to Their Wounds - Scientific American
The Incredible Range of Chimpanzee Behavior - JSTOR Daily
Tool use by non-human animals - Wikipedia
What do chimpanzees eat? : Jane Goodall
Why Chimpanzees Have Not Entered The Stone Age
Nutcrackers & Whistles: Animals That Use Tools
Chimpanzee - Intelligence and taxonomy | Britannica
Chimp-made toolkit most complex ever found
Tool Use Comes Naturally to Chimpanzees | Sci.News
Where Do Chimps Learn to Use Tools? Ask Mom. - Big Think
Chimps Shine Light on Mystery of How the First Humans Used Tools to Dig for Food
Chimps Catch Insects to Put on Wounds. Is It Folk Medicine? - The New York Times
Chimps learn tool use from others and may be more similar to humans than first thought, research says | World News | Sky News
Chimp Intelligence Vs Humans
Chimps Using Tools | Facts About Chimpanzees | DK Find Out
Chimpanzees Learn to Use Tools On Their Own, No Teaching Required | Discover Magazine
Researchers spot apes fashioning advanced tools - CSMonitor.com
