Emotional tears are a uniquely human behavior. Research suggests they evolved not for eye health but as a powerful social ...
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Are Humans The Only Animal Species That Cries?
Why do we cry? Faced with overwhelming joy or grief, our eyes well up and tears stream down our cheeks. Crying is one of the most defining human experiences one can have. And yet, it's an evolutionary ...
Issue 42 (January 2026) of CURIOUS is out now, bringing you science highlights for the month plus deep dives into intriguing topics, interviews, exclusives, diary dates, and explanations for some of ...
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