[Frumious Bandersnatch]

A well-conditioned human can do 70+ miles in a day. There have been many documented cases of humans doing exactly this during the 1800s. As far as the Tarahumaras are concerned, claims have been made that they can run 100+ miles per day for days on end.

Don't confuse short-distance speed (which is not a human forte) for long distance endurance. Humans are capable of running and walking pretty much indefinately with a modicum of rest. Basically, a night's sleep is all that is needed for a human (in good condition) to fully recuperate.

There is no other land based animal of which I am aware that has the endurance of humans.

[ColoCdn]

Perhaps I confused the endurance of humans with the question of ability to catch an ostrich.

Interesting thought though, isn't it. Do you know if anybody has ever run down an ostrich or a pronghorn antelope?