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Why Do Spiders Curl Up When They Die?

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Channel: SciShow
Categories: Biology   |   Science  
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When spiders die, their tiny legs curl up tight against their body, because spiders dont use muscles to extend their legs. Instead, they have hydraulic legs!

Hosted by: Michael Aranda

SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org

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Sources:
https://asknature.org/strategy/leg-uses-hydraulics-and-muscle-flex/
https://www.mdpi.com/2218-6581/5/3/15/htm
https://www.sciencedirect.com/science/article/pii/B9780323034104500262 (excerpted at https://www.sciencedirect.com/topics/medicine-and-dentistry/rigor-mortis)
https://www.britannica.com/science/muscle/Actin-myosin-interaction-and-its-regulation

Images:
https://www.youtube.com/watch?v=29_kno2aoGo

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