Tilikum is the most prolific sire in captivity, with 21 offspring, 11 of which are still alive.[28] While living in SeaLand, Tilikum sired his first calf Kyuquot, which was born to Haida II on December 24, 1991. Since his arrival at SeaWorld, Tilikum has sired many calves with different female orcas:
1.Kyuquot (1991)
2.SOP-9201 (1992 - died after 36 days, cause unknown)
3.Nyar (1993–1996)
4.Taku (1993-2007)
5.SWF-9401 (1994 - stillbirth)
6.SWF-9601 (1996 - stillbirth)
7.Unna (1996)
8.SWF-9701 (1997 - stillbirth)
9.Sumar (1998–2010)
10.Tuar (1999)
11.Tekoa (2000)
12.Nakai (2001)†
13.SWT-0101 (2001 - stillbirth)
14.Kohana (2002)†
15.Ikaika (2002)
16.Skyla (2004)
17.SWF-0501 (2005 - miscarriage unconfirmed)
18.Malia (2007)
19.Sakari (2010)
20.SWF-1001 (2010 - stillbirth)
21.Makaio (2010)
† In 1999, Tilikum began training for artificial insemination. In early 2000, Kasatka, who resides at SeaWorld San Diego, was artificially inseminated using his sperm. She gave birth to a male calf, Nakai, on September 1, 2001. On May 3, 2002, another female in San Diego, named Takara, bore Tilikum's calf through artificial insemination. The calf was a female, named Kohana.
