|Kawili Kai, born to a female wholphin by a male dolphin, at 9 months of age in September 2005|
|Hybrid:||Tursiops truncatus × Pseudorca crassidens|
A wholphin or wolphin is an extremely rare cetacean hybrid born from a mating of a female common bottlenose dolphin (Tursiops truncatus) with a male false killer whale (Pseudorca crassidens). The name implies a hybrid of whale and dolphin, although taxonomically, both are within the "oceanic dolphin" family, which is within the "toothed whale" suborder. Wholphins have been born in captivity and also reported in the wild.
The first recorded wholphin was born in a Tokyo SeaWorld in 1981; he died after 200 days.
The first wholphin in the United States and the first to survive was Kekaimalu, born at Sea Life Park in Hawaii on May 15, 1985; her name means "from the peaceful ocean". Kekaimalu proved fertile when she gave birth at a very young age. The calf died after a few days. In 1991, Kekaimalu gave birth again, to daughter Pohaikealoha. For two years, she cared for the calf, but did not nurse it; it was hand-reared by trainers. Pohaikealoha died at age 9. On December 23, 2004, Kekaimalu had her third calf, daughter Kawili Kai, sired by a male bottlenose. This calf did nurse and was very playful. Only months after birth, it was the size of a one-year-old bottlenose dolphin. All three calves were three-quarters bottlenose dolphin and one-quarter false killer whale. As of January 2019[update], Kekaimalu and Kawili Kai remain in captivity in Sea Life Park.
|Tanui Hahai (false killer whale) ♂||Punahele (bottlenose dolphin) ♀|
|bottlenose dolphin ♂||Kekaimalu (wholphin) ♀||bottlenose dolphin ♂|
|Unnamed calf||Pohaikealoha ♀||Kawili Kai ♀|
- Sean B. Carroll (September 13, 2010). "Remarkable creatures". New York Times. Retrieved September 14, 2010.
The first captive wholphin, Kekaimalu, was born on May 15, 1985, to a female bottlenose dolphin named Punahele, who shared a pool with a male false killer whale named Tanui Hahai. The wholphin's size, color and shape are intermediate between the parent species. She has 66 teeth – intermediate between a bottlenose (88 teeth) and false killer whale (44 teeth)
- "Whale-dolphin hybrid has baby wholphin". MSNBC. April 15, 2005. Archived from the original on March 1, 2009.
- West, Karen (May 18, 1986). "A Whale? A Dolphin? Yes, It's A Wholphin". Chicago Tribune. Retrieved July 9, 2013. “Born at Sea Life Park on May 15, 1985, Keikaimalu was dubbed a wholphin by Sea Life Park’s training staff.”
- "Ditching SUVs and Breeding Beefalos". E Magazine. 17 (1): 64. January–February 2006. Retrieved May 4, 2013. (subscription required)
- "Family Attractions in Oahu – Swim with Dolphins in Hawaii". Sea Life Park Hawaii. December 24, 2014. Retrieved January 30, 2019.