How long can tentacles washed ashore still potentially discharge venom after the jellyfish has died?
Answer
Up to two weeks
A critical component of situational awareness involves understanding that the danger does not disappear when the jellyfish itself is no longer alive or has washed up on the sand. Even dead tentacles retain the capability to sting. It is important to note that tentacles washed ashore can remain venomous and capable of discharging their nematocysts for an extended period, potentially remaining hazardous for up to two weeks after the creature has perished, necessitating continued caution around all jellyfish debris.
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