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Tunicate, also known as urochordata, tunicata (and by the common names of urochordates, sea squirts, and sea pork[1]) is a subphylum of a group of underwater saclike filter feeders with incurrent and excurrent siphons, that are members of the phylum Chordata. Most tunicates feed by filtering sea water through pharyngeal slits, but some are sub-marine predators such as the Megalodicopia hians. Like other chordates, tunicates have a notochord during their early development, but lack…

Tunicate, also known as urochordata, tunicata (and by the common names of urochordates, sea squirts, and sea pork[1]) is a subphylum of a group of underwater saclike filter feeders with incurrent and excurrent siphons, that are members of the phylum Chordata. Most tunicates feed by filtering sea water through pharyngeal slits, but some are sub-marine predators such as the Megalodicopia hians. Like other chordates, tunicates have a notochord during their early development, but lack…

Dive! Dive! Collared Polar Bear at San Diego Zoo Participates in Energetics Research

Dive! Dive! Collared Polar Bear at San Diego Zoo Participates in Energetics Research

Icebear emerging from the water ...  gorgeous and breathtaking!  ...  icebear…

Icebear emerging from the water ... gorgeous and breathtaking! ... icebear…

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