Vallejo, California

(AP Photo/Ben Margot)

An Atlantic bottlenose male dolphin calf swims alongside his mother at Six Flags Discovery Kingdom Thursday, July 1, 2010, in Vallejo, Calif. The two dolphin calves were born in May and June, both pregnancies the result of successful artificial insemination procedures with sperm procured from males at different facilities. It was a conscious decision to bring new genes into the group of 15 dolphins at the park to allow for greater genetic diversity and ensure the overall health of the population.