David Greybeard fishes termites with grass
In late 1960 at Gombe, Goodall watched an adult male chimpanzee she had named David Greybeard strip leaves from a twig and poke grass stems into a termite mound. He then pulled the stems out and ate the termites clinging to them, which meant he was both making and using a tool. When she reported it, Louis Leakey replied that science must now redefine 'tool', redefine 'man', or accept chimpanzees as human, because toolmaking had been treated as the line separating humans from other animals.
