From BBC the series of The Blue Planet these amazing shrimps are shown in the episode of Coral Seas. Fantastic how besides bees, ants and wasps also shrimps have developed an altruistic social structure with just one queen! ------------------------------ Ants, bees, termites, and wasps were long thought to be the only animals that live eusocially--that is, they form communities of overlapping generations in which cooperative care of the young, common defense, and a breeding queen are the norm. Naked mole rats later joined their ranks as the only known eusocial mammals. And last spring, marine biologist J. Emmett Duffy of the College of William and Mary in Virginia added Synalpheus regalis, a newly discovered species of snapping shrimp, to the eusocial register, the first marine species to have that distinction. Many species of snapping shrimp--so named for their outsize fighting claw--are known. The species Duffy discovered is about half an inch long and lives in the nooks and crannies inside sea sponges in the Caribbean, feeding on the microscopic plants and other material in seawater that the sponge continually siphons in. For an ecological study, Duffy was collecting some of these sponges from a coral reef 50 feet underwater off the coast of Belize. While I was doing that study, Duffy says, I noticed that some species had only a single female per sponge. That made me very curious about the social aspects of these animals. He proceeded to collect more than 30 sponges ...
http://www.youtube.com/watch?v=z735I4m8F8c&hl=en
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