Two Headed Porpoise Just Wants Love, Validation. Last month, a group of Dutch fishermen discovered a double headed harbor porpoise Phocoena phocoena. The unusual little fellow was definitely DOA, and fearing that keeping it would get them in trouble, the fishermen took a few photos of the beast and threw it back in the ocean. What the crew didnt realize was theyd found the first case of dicephalic parapagusor partial twinningin harbor porpoises. Now, researchers from the University of Rotterdam have examined the photos and are trying to learn more about the unusual creature. While the harbor porpoise is one of the most common cetaceans in the northwest European continental shelf waters, this condition is highly unusual. The team believes the twins did not survive long after they were born, since their dorsal fin was not yet erected. The small hairs on their upper rostrums that beak looking dolphins have had also not fallen off, indicating they died pretty quickly. This case concerns the second known case of twinning, the first case of conjoined twins in Phocoena phocoena, the fourth known case of parapagus dicephalus in a cetacean species and the tenth known case of conjoined twinning in a cetacean species, the researchers wrote.
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November 2017
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