- Original release
- Previous episode S2017E11 - Why Don’t Sheep Shrink In The Rain?
- Number S2017E12
- Country United States
- Original language English
- Genre Documentary
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External links
TheTVDB page
IMDB page
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Last update
17 avril 2026 - 06:47
on 11 databases
Why Don't Sled Dogs Ever Get Tired?
Sled dogs are the best endurance athletes in the world thanks to a weird quirk in their metabolism.
Next episode
S2017E13 - Why Most Rain Never Reaches The Ground
