Talk:Endurance running hypothesis

Two cents
A good argument for is that two legs use less energy than four.

However, I can see problems with this. Most humans are not marathon runners - I suggest marathon runners are exceptional. Anyone who has tried to chase down an animal will know how hard it is. Especially when it changes direction suddenly.

Rather I think early humans probably stalked up to their prey and surprised it. A wounded/injured animal could be chased perhaps. I suggest humans are walkers who occasionally run.

Regarding hairlessness... many of the other runners of the animal world - horses, antelopes, cattle, ostriches, wolves, kangaroos (if you will) have significant fur/feathers over much of their body.

Also another significant issue is our feet. While they do harden, some of the foot is very vulnerable to injury by rocks and thorns, unlike ungulates etc. -Albannach (talk) 08:24, 11 April 2014 (UTC)