Cojoined whale calves. With photos. Sadly, they did not survive.
Conjoined gray whale calves discovered in Baja California lagoon; find could be a first | GrindTV.com: Scientists in Mexico’s Laguna Ojo de Liebre, or Scammon’s Lagoon, on Sunday discovered conjoined gray whale calves, and it could be the first documented case of Siamese twin gray whales.
Conjoined twins have occurred in other species, notably fin, sei and minke whales. However, an online search and a search of the database at the Natural History Museum of Los Angeles County did not reveal published instances of conjoined gray whale twins.