Artificial insemination
The first killer whale conceived through artificial insemination was male Nakai, who was born to Kasatka and father Tilikum at the SeaWorld park in San Diego in September 2001. A female killer whale named Kohana, the second killer whale conceived in this manner, was born at the same park eight months later. Artificial insemination lets park owners maintain a healthier genetic mix in the small groups of killer whales at each park while avoiding the stress of moving the animals between marinas.