Why Don't Sled Dogs Ever Get Tired?

Thanks to Squarespace for sponsoring this video! https://squarespace.com/minuteearth Sled dogs are the best endurance athletes in the world thanks to a weird quirk in their metabolism. Thanks also to our supporters on https://www.patreon.com/MinuteEarth ___________________________________________

• #فناوری_و_رایانه
• #minuteearth
• #minute_earth
• #minutephysics
• #minute_physics
• #earth