Wholphins
In 1985, a bottlenose dolphin and a false killer whale got a little frisky and produced a baby. The female offspring, named Kekaimalu, was deemed a “wholphin” and is the only known living hybrid of the two species.
However, she did produce three babies of her own with a bottlenose dolphin, one of which still lives with her at Sea Life Park on the island of Oahu in Hawaii.