Friday, June 8th, 2012

Hydrodynamically Silent Jellyfish Awesome

Here is the new Sigur Rós video, the third in the "Mystery Film Experiment" series they're making to accompany the music on their new album, Valtari, which I spent some of yesterday listening to and enjoying. No, this video is not that. It is a video Scientific American made of Mnemiopsis leidyi comb jellies at the New England Aquarium. The pulsing strings of things that look like Christmas lights are tiny cilia that propel the creatures through the water without making ripples that would scare away the plankton that they eat. As Mark Fischetti tells it, "The comb jelly is the ultimate 'hydrodynamically silent' predator." Awesome! (Except that after being transported by shipping balast to the Black Sea, where they have no natural predators, they have eaten all the plankton there, effectively destroying the ecosystem. Bummer.)

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skahammer (#587)

And everyone else is so worried about bears. When it's clearly either the bacteria or the jellies which will make snacks out of all of humanity's delicious protoplasm.

liznieve (#7,691)

…but…physics…and…equal and opposite… I AM SO CONFUSED HOW IS THIS POSSIBLE?!?!

BadUncle (#153)

I could watch that all day.

Dave, it's not your fault because the original article gets it wrong, but comb jellies (Phylum Ctenophora) are not jellyfish (Phylum Cnidaria).


Invertebrates Against Taxonomic Discrimination

Dave Bry (#422)

Oh wow. Interesting. Thank you, brilliantmistake!

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