Science

Why Do Spiders Curl Up When They Die?

When spiders die, their tiny legs curl up tight against their body, because spiders don’t use muscles to extend their legs. Instead, they have hydraulic legs!

Hosted by: Michael Aranda

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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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