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We bet your know-it-all friend has never seen this animal

By Leonard Ho - Posted Jul 29, 2014 09:00 AM
Scientists aboard the exploration vessel Nautilus surveying the deep ocean floor documented one of the craziest animals they (and we've) ever seen. If your friend claims to know what this thing-of-the-deep is, we recommend you unfriend him immediately.
We bet your know-it-all friend has never seen this animal

Color-corrected image of a deepwater siphonophore documented by E/V Nautilus

Insane in the membrane

This bizarre organism is a deepwater siphonophore.  Siphonophores are cnidarians (hydrozoans to be more precise) closely related to corals, anemones, and jellyfish.  The most famous siphonophore is the Portuguese Man o' War, whose deadly sting needs no introduction.

While this mass of floating blue goo appears to be one organism, siphonophores are actually colonies of hundreds of individual polyps.  The most amazing part of these animals is that while each individual is the exact same species, they take on drastically different morphology depending on where each individual is located on the colony.  In other words, the siphonophore you see in this video is made up of a bunch of individual animals with the same DNA that look and function radically differently in order to form this flotilla of death.  Wild!

And no, it's not reef-safe.  It's probably not people-safe either.

Author: Leonard Ho
Location: Southern California

I'm a passionate aquarist of over 30 years, a coral reef lover, and the blog editor for Advanced Aquarist. While aquarium gadgets interest me, it's really livestock (especially fish), artistry of aquariums, and "method behind the madness" processes that captivate my attention.

Website: http://www.advancedaquarist.com.

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