The exception is cold climates. Get a sled dog in the cold and they can run that fast while pulling weight. They can even run hundred or more miles at a slightly lower pace. In normal weather this is not possible for most animals because they can’t cool off though.
colcali_77 t1_ircnygf wrote
Reply to comment by mmarollo in Eliud Kipchoge's New Marathon World Record, Visualized [OC] by chartr
The exception is cold climates. Get a sled dog in the cold and they can run that fast while pulling weight. They can even run hundred or more miles at a slightly lower pace. In normal weather this is not possible for most animals because they can’t cool off though.