What a Difference 200,000 Years Makes | Popular Science

What a Difference 200,000 Years Makes | Popular Science: "For Homo erectus, that difference of 200,000 years meant a major difference in climate. Living closer to 750,000 BCE, Peking man and his brethren would have had to brave the cold of a chillier age. That could mean that they used fire, though no clear evidence of this has been found. Or, it could just mean that they were even more badass than we previously thought."