Uploaded December 2022 | Updated September 2026, 36 minutes ago

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Good things come in small packages, but so do dangerous ones. Meet the Irukandji jellyfish. It may only be the size of your fingernail, but that doesn't stop it from being lethal enough to kill you. How can a creature this tiny be lethal? And what is Irukandji syndrome? Why should you be scared of it?

00:00 This Jellyfish the Size of a Fingernail Can Kill You
00:52 Irukandji jellyfish
02:12 Powerful venom
02:23 Deadly sting


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