Early in 2017 evidence of 130,000 year old Americans was found. This is more than 100,00 years older than the first Americans should be. So is it right?
Young primates are often bipedal as they learn to move like a grownup. This shows just how flexible locomotion can be, and how easy it might be to switch.
Chimps seem to learn from each other, producing a unique culture in each group. New research challenges this, saying behaviours is just invented each time.
Cannibal Neanderthals were common but a group in Belgium went one step further. Not only did they eat their kin, they used them to make tools too