Henry the Hexapus was a six-limbed lesser octopus found by British marine scientists in 2008.
His unusual number of arms was not immediately noticed, and appears to have resulted from a natal anomaly, rather than a physical accident.
[1][2] Developmental biologist PZ Myers called the defect "an ordinary sort of error.
[5][6] American tourists visiting Portugal also claimed to have captured images of a six-limbed octopus in the waters of Portinho Arrábida, although experts could not confirm the sighting without additional information.
[7] Labros Hydras, an American tourist, did capture a hexapus in Greece in 2013 as verified by photographs, but killed it by smashing it against a rock.