A sea squirt, also known as a tunicate, is an aquatic organism belonging to the phylum Chordata. They have a unique appearance, often appearing as transparent or semi-transparent sac-like structures, resembling a tunic, from which they get their name. Sea squirts inhabit the oceans and come in various species, including sessile (attached) and pelagic (free-swimming) forms. They primarily feed on filtering plankton and play essential roles in marine ecosystems
