Scientists have long debated when early humans learned that they could use fire to cook their food. Some believe this occurred soon after humans learned to control fire, others argue there isn’t enough evidence. A scientific study in a chimpanzee sanctuary in the Democratic Republic of the Congo has shed new light on these persistent questions. The experiment gave chimps a machine to “cook” their food and tracked their preference for cooked food and how it changed their eating behaviors. Listen to learn more about this experiment and how it plays into the debate about when early humans began to cook.
Story Length: 3:54
AIR DATE: 06/03/2015