One popular idea to explain the current obesity epidemic proposes that our hunter-gatherer ancestors had a fat-storing adaptation, which allowed them to survive frequent famines. Today, with our overabundance of food, this adaptation is causing us to get fat. There's just one problem with this idea — research now…
We usually blame the ancient Mesopotamians for the invention of time-tracking devices. But as a recent discovery in Scotland has revealed, hunter-gatherers may have started using a rudimentary calendar over 10,000 years ago.
Archaeologists have uncovered nearly 5,000 cave paintings at 11 different sites in Mexico, the likely product of early hunter-gatherers. What’s even more remarkable is that the area was previously thought to be uninhabited.
Like chimps and bonobos, humans live in social groups full individuals who help each other. Also like our ape relatives, we make war with outsiders. But our social groups can be millions strong. What makes humans so good at forming mass societies?