I say we enter a human team in the Iditarod to test this theory.

"We’re the tortoises of the animal kingdom"

Surely Tortoises are the Tortoises of the animal kindom.

What does the sweatiness have to do with anything?

"Surely Tortoises are the Tortoises of the animal kindom."

Yeah, that's what I would think. And don't call me Shirley.

Sorry, I had to.

Sweatiness is a cooling system other animals don't have. Dogs, for instance, cool themselves by panting out heat from the lungs.

All mammals sweat in one way or another, humans just less hair (most of us anyway) so it's more obvious. And that tortoise comment was hilarious!