Case reports of conjoined twins (‘Siamese twins’) in wild mammals are very scarce. Most published reports of conjoined twinning concern cases in man or in domestic mammals. In this article a case of conjoined twinning in a wild mammal is described: a parapagus dicephalus with unilateral schistoprosopus in a bottlenose dolphin Tursiops truncatus stranded on the coast of the Netherlands in 1917. This case concerns the oldest known case of a symmetrical conjoined twin in a cetacean species.

, , ,
Deinsea

CC BY 3.0 NL ("Naamsvermelding")

Natuurhistorisch Museum Rotterdam

Erwin J.O. Kompanje. (2005). A case of symmetrical conjoined twins in a bottlenose dolphin Tursiops truncatus (Mammalia, Cetacea). Deinsea, 11(1), 147–150.