28: First Americans May Have Come From Australia

The first time she saw it four years ago in a museum, Silvia Gonzalez knew there was something special about the skull found in Mexico City in 1959. Known as Peñon Woman III, it was long and narrow, not round and broad cheeked like the usual skulls of prehistoric Native Americans. “It looked so incredibly different,” Gonzalez says. “Physically, it was very pleasing to the eye.”