37-year-old killer whale Kasatka gave birth to a calf after an hour of labor at Shamu Stadium.
The baby whale is estimated to weigh between 300 and 350 pounds and measures six- to-seven feet. The gender of the calf is not yet known.
Park officials say that right after it was born, the calf instinctively swam to the surface for its first breath.
As with any killer whale birth, the mother and calf will be observed round the clock for the first few days.