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—

Dr. Axe talks about what Darwinian evolution would need to do in order to create new functions. There are two problems to be addressed: 1) Big Problem: creation of a new protein structure for a new function; 2) Smaller problem: modifying an existing structure to do something slightly different. Which one do you think Darwinian evolution can do? | Center for Science & Culture