Sled dogs are crazy. So much stamina.

Here’s a blog post about some science The Canine Kings of Endurance | Runner’s World - https://www.runnersworld.com/training/a20832277/the-canine-kings-of-endurance/

That dog in the picture though. Betcha anything it didn’t start at the beginning but just joined later in the race. Little cheater.

I hope his name is Forest…