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ピンもと:the Guardian

Siphonophores: the longest animals on the planet – in pictures

Physalia the “Portuguese man of war”. Photograph: C Dunn/Brown University


Pictures of the day: 5 July 2011

Baby Jellies by Peter Willows/BNPS, Hundreds of moon jellyfish babies have been born at the Weymouth Sealife centre in Dorset. Aquarists say they have never seen so many jelly babies of all shapes, sizes and colours from many different species at one time - but even though they may look cute many of them are highly poisonous as well. #Moon_Jellies

Physalia physalis, a.k.a Portuguese Man'O War. It's not a "simple" jellyfish, but the symbiosis of more specialized foms of life. In the best case, its urticant, toxic touch burns like a flame [TLDR version: pretty, but don't touch!]


Translucent Creatures

Sea Butterfly Snail

Monterey Bay Aquarium online 'jellies' exhibit...

ピンもと:National Geographic

Portuguese Man-of-Wars, Portuguese Man-of-War Pictures, Portuguese Man-of-War Facts

Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish. Not only is it not a jellyfish, it's not even an "it," but a "they." The Portuguese man-of-war is a siphonophore, an animal made up of a colony of organisms working together.

Hula Skirt Siphonophore. I actually saw one of these off Catalina one time!

月刊誌ナショナル ジオグラフィック(NATIONAL GEOGRAPHIC) 日本版サイト。自然、動物、環境、宇宙、歴史、文化などナショジオ独自の写真、動画、連載、インタビュー、本・DVD情報を提供します。日経ナショナル ジオグラフィック社が運営。

ピンもと:Mental Floss

15 Facts About the Lion’s Mane Jellyfish

Lion's mane jellyfish, cyanea capillata.