Early Humans: Ice, Stone, and Survival - Suzanne Pilaar Birch

You and the other 8 billion humans alive today are members of the only species that has survived in the genus Homo since its 2.5-million-year evolutionary journey began. Homo habilis, H. erectus, H. neanderthalensis—plus many other species we know of and perhaps dozens yet to be discovered—have all come and gone. H. sapiens alone has endured.