Born to Run Farther with Dr. Irene Davis and Chris McDougall
StarTalk Radio
00:00
The 26 Markers of Endurance Running
CNN's John Sutter talks with evolutionary biologist Chris Boulden. He says we evolved to be good runners because our brains were getting bigger. We had to run a kudu out of the herd and then club them to death, he says. Why do we wear running shoes at all? "It's not a weird fact that we have running contests"
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