Have you ever wondered why we cry? In today's episode of SciShow, Hank gives us the answer, covering different types of tears and whether we are the only species to get all teary eyed during the final scene of a good movie.
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Tagged under: hank green,scishow,tears,crying,basal,reflex,emotional,sulphuric,sulfenic,lacrimal,prolactin
Find more lesson plans like this:Apartheid in Cry, The Beloved Country: Quotes & Examples
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