See a tunicate in action underwater

Tunicates, also known as urochordata, tunicata (and by the common names of urochordates, sea squirts, and sea pork) are underwater sac-like filter feeders with incurrent and excurrent siphons, and are part of the phylum Chordata.
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Tunicates, also known as urochordata, tunicata (and by the common names of urochordates, sea squirts, and sea pork) are underwater sac-like filter feeders with incurrent and excurrent siphons, and are part of the phylum Chordata.