Some jellyfish sting deeper than others

jellyfish

The moderate sting from this Chrysaora pacifica jellyfish comes from a small number of stinging nematocysts that are long enough to penetrate the skin of its prey (or an accidental victim). More painful species have longer stingers and more of them, a new study finds.

harum.koh/Flickr (CC-BY-SA 2.0)

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