end0skeletal: Sea squirts (or ascidians) are a group of sac-like marine invertebrate
end0skeletal: Sea squirts (or ascidians) are a group of sac-like marine invertebrate filter feeders. Found all over the world, sea squirts are sessile animals: they remain firmly attached to sea floor on rocks or shells. There are 2,300 species of ascidians and three main types: solitary ascidians, social ascidians that form clumped communities by attaching at their bases, and compound ascidians that consist of many small individuals forming colonies up to several meters in diameter. Sea squirts feed by taking in water, plankton, and detritus through a tube, the oral siphon. The water enters the mouth, flows through mucus-covered gill slits into a water chamber called the atrium, where food particles are trapped and moved into the digestive system. The filtered water then exits through the atrial siphon. Almost all ascidians are hermaphrodites and different species have markedly different reproductive strategies. (Photo Sources: x x x x x x x x x x) -- source link
#trypophobia warning