TED-Ed: How does a jellyfish sting? - Neosha S Kashef

Jellyfish are fascinating creatures with delicate bodies made mostly of water and mesoglea. They use venomous stinging cells called cnidocytes for protection and hunting. Jellyfish grow from tiny ephyrae to large species like the lion's mane. Their stings are delivered through nematocysts, which are incredibly fast and can still fire after the jellyfish dies. First aid for stings includes using vinegar or seawater, but not freshwater. Some jellyfish stings can be deadly, requiring immediate medical attention. Despite their defenses, jellyfish have predators like leatherback turtles and ocean sunfish. Research is exploring the use of jellyfish stings in medicine.

What should you avoid using to rinse a jellyfish sting and why?

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What is the potential benefit of jellyfish stings for humans, according to scientists?

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