An international team of researchers has found evidence that hot springs existed in Olduvai Gorge — a paleoanthropological site in the Great Rift Valley in Tanzania that has yielded some of the most significant fossils of hominins, such as Paranthropus boisei, Homo habilis and Homo erectus — around 1.7 million years ago. These hydrothermal features may have provided a convenient way to cook food, for instance to boil fresh kills or certain...
