1999
- Documentary
Why Dogs Smile and Chimpanzees Cry
Is it human conceit to attribute emotions to animal actions, or are emotions basic to life on earth? Wildlife filmmakers and scientists make a convincing argument for the latter in this gripping film.
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Where to watch
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StatusReleased
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Release dateJan. 1, 1999
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Original LanguageEnglish
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Production Companies
- Discovery Channel