Neanderthal: lived 150,000 to 200,000 years ago - teeth larger than modern humans but smaller than homo erectus - larger brains - adapted to the cold
Homo erectus: nicknamed Upright Man - first appeared 1.5 million years ago - brain was 70% the size of modern humans - lived in Africa Europe and Asia
Australopithecus: nicknamed Southern Ape - 1.2 to 1.5 meters tall - ate fruits nuts and meat - died out 2 million years ago
