Daniel Lieberman, the Professor of Biological Sciences at Harvard, joined The Colbert Report Thursday night to "explain that human beings are among the best long-distance runners in the world because they're good at sweating."

You never knew how much you wanted to see running 1000 frames per second until right now. (via, ht @dennymayo)

Great Britain's Alistair Brownlee won Saturday's ITU World Triathlon Series in San Diego with a dominant performance and blistering run.

Video preview of the 2013 Boston Marathon, brought to you by asics and the Universal Sports Network.

Previewing the 2013 U.S. Pro Championships

With the addition of a fourth race for its 2014 Walt Disney World Marathon Weekend, Disney has introduced the Dopey Challenge -- a 5K on Thursday, the new 10K on Friday, Saturday's half marathon and the the marathon Sunday. Complete al four and you'll get six medals -- one for each race, plus a Goofy Challenge medal and a Dopey Challenge medal.

@TriSports' take on Paul Harvey's "So God Made a Farmer" speech. I've watched it a couple time and can't decide if it's inspiring and awesome, or just kinda over-the-top. What say you?

First Harlem Shake video with people on bike trainers, probably.

Chris McCormack crashes into the back of Marino Vanhoenacker's bike; it may have cost Vanhoenacker a lot of energy taking the lead before the run.