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A bread-crumb sized Hydra resting on a twig in the shallows of a lake. It has a column-shaped body with tentacles around a mouth. It uses these tentacles to catch small crustacean prey.

A bread-crumb sized Hydra resting on a twig in the shallows of a lake. It has a column-shaped body with tentacles around a mouth. It uses these tentacles to catch small crustacean prey.

RR Helm (31 Posts)

I am a PhD candidate studying jellyfish development and evolution at Brown University. I've participated in numerous research expeditions, studying jellies all over the world, from Africa to the abyss. I am currently studying the beautiful mauve stinger jellies, found in the Mediterranean, and the ghostly Atlantic stinging nettles found on the US east coast.





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