![](https://image.tmdb.org/t/p/original/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![](https://image.tmdb.org/t/p/w342/3BZdOE7zeYX1DGscvIyUTEkUMbi.jpg)
Cracking Crystals
Herman the mantis shrimp is in the lab to help the doctors explain how your incredible body not only makes crystals in your bones and teeth, but also stops them from doing damage in your kidneys.
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![](https://image.tmdb.org/t/p/w300/5QllU1d5EQjF2mniTW5vP16cHWu.jpg)
Other episodes for this season
![Explosive Spots!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Feeling Nervous!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![In a Spin!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Snot-Tacular!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Eyeball Action](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Cracking Crystals](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Don't Cry This at Home](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Who's Getting Snotted?](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
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![Ask Us Anything!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![What a Pong!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Rules are Rules!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Not Eating in the Lab!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![We Are Superheroes!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
![Happy Birthday NHS!](https://image.tmdb.org/t/p/w300/gUhlVBUWaXWEHoH9f3muY28dT1o.jpg)
Herman the mantis shrimp is in the lab to help the doctors explain how your incredible body not only makes crystals in your bones and teeth, but also stops them from doing damage in your kidneys.