395K views · 2.1K reactions | Op 11 september 2001 crashten twee gekaapte vliegtuigen in de Twin Towers in New York. | National Geographic | Facebook

It's long been believed that modern humans followed a relatively straight path of evolutionary progress. But discoveries of new bone fragments and fossils around the world, alongside breakthroughs in DNA analysis, reveal a much more complex picture. Paleontologists now believe that early Homo sapiens shared the Earth and mated with a surprising variety of previously unknown human species. In this timelapse, paleoartist John Gurche meticulously constructs a model of a recently discovered hominin—