The Only Animal That Weeps
The Only Animal That Weeps Be Smart
The Only Animal That Weeps
Why do we cry? It’s weird. Humans leak water out of their faces when they get sad. Are we the only animals that do this? What does it mean? What is it for? Here’s the science of human tears!
About the Program
Be Smart
Join Joe Hanson as he explores curiosity and illuminates the science behind… well, everything.
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