Tierisch müde - Das Rätsel Schlaf
- Жанр: документальный, телевизионный фильм
- Студия: CBC Docs, Love Nature, WDR/Arte
- Ключевое слово: field research, nature documentary, animal research, scientific research, sleep study, science mystery, animal documentary, science and nature, wildlife documentary, science documentary
- В ролях:
