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Biology

Facts About Your Tears

Newborn babies cry, but without tearing up. Babies don't have fully formed tear ducts and do not produce tears for about 4-13 weeks.

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10 Things You Didn't Know About Tears

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Key Facts In This Video

  1. Every time you blink, tears fall from glands that help you see. 00:23

  2. Crocodiles cry when eating. 01:23

  3. Butterflies feed off the tears of some turtle species. 02:20

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