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why are our tears salty?

  • Written by Matthew Barton, Senior lecturer, School of Nursing and Midwifery, Griffith University
why are our tears salty?Shutterstock

Why are tears salty? — Aarna, aged 6

why are our tears salty?

Hi Aarna, thanks for your great question! I’m going to start off by telling you a little bit of a story about sea turtles. That might seem strange, but don’t worry, it will all make sense soon.

When mother sea turtles sneak onto the beach at night to lay their eggs, if you look...

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