It seems that this jellyfish can really pack a punch- the thick bright ends of its tentacles are where the nematocysts (stinging cells) are especially dense.

It seems that this jellyfish can really pack a punch – the thick bright ends of its tentacles are where the nematocysts (stinging cells) are especially dense. Image courtesy of the NOAA Office of Ocean Exploration and Research, Mountains in the Deep: Exploring the Central Pacific Basin.

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