1 Season
26 Episode
Once Upon a Time... Life - Season 1 Episode 20 The Muscles and the Fat
Muscles account for almost half the weight of the human body. They also need a ton of energy to do their jobs correctly.
- Country : France, Belgium, Canada, Italy, Japan, Netherlands, Spain
- Genre : Family, Animation, Documentary
- Director : Albert Barillé
- Cast : Roger Carel, Gilles Laurent, Marie-Laure Beneston, Alain Dorval, Henry Djanik