Last killer whale born at Sea World

The last orca has been born in captivity at a SeaWorld park in San Antonio, Texas, just over a year after the theme park decided to stop breeding orcas following animal rights protests and declining ticket sales.

The Orlando-based company said the orca — the last in a generation of whales bred in confinement — was born Wednesday afternoon. SeaWorld did not immediately name the calf because the park's veterinarians had not yet determined whether it was male or female.

The mother, 25-year-old Takara, was already pregnant when SeaWorld announced in March 2016 that it had stopped breeding its orcas. The gestation period for orcas is about 18 months.

Preparing late last month for the moment, SeaWorld's chief zoological officer, Chris Dold, told The Associated Press he expected the birth to be bittersweet, because it would be the last such event at any of the parks. But just hours after the calf was born about 3:30 p.m. EDT Wednesday, Dold said, SeaWorld staff only felt like celebrating. SeaWorld said mother and calf both appear healthy.

"These are extraordinary moments," he said by phone while traveling to the U.S. from Abu Dhabi, where SeaWorld is developing its first new park without orcas. "It's a tempered celebration only because we're focused on the health of these guys."

SeaWorld decided to stop breeding orcas, and phase out its world-famous killer whale performances by 2019, after public opinion turned against keeping orcas, dolphins and other animals in captivity for entertainment. The backlash intensified after the 2013 release of "Blackfish," a documentary critical of SeaWorld's orca care. It focused on the orca Tilikum, which killed trainer Dawn Brancheau in Orlando in 2010, dragging her into the pool before shocked visitors after a "Dine with Shamu" show.

Tilikum, which sired 14 calves over nearly 25 years in Orlando, died of bacterial pneumonia in January.

The newborn calf was sired by Kyuquot (pronounced ky YOO kit) at the San Antonio park by natural means. It brings SeaWorld's orca population in the U.S. to 23. All the orcas are expected to remain on display and available for researchers for years to come in Orlando, San Diego and San Antonio.

SeaWorld has said it plans to introduce new "natural orca encounters" in place of theatrical shows. This summer, the San Diego park will unveil a new, educational attraction in a revamped pool, and new orca attractions eventually will follow in San Antonio and Orlando.

The calf will be visible to visitors either in the orca stadium pool at the San Antonio park or in two adjacent pools. Observations about the calf and Takara by SeaWorld trainers will be provided from the moment of birth to researchers trying to fill gaps in their data about wild killer whales.

Dold said veterinarians at the San Antonio park told him the calf was born normally — tail first — after about an hour and a half of smooth labor. Both orcas were swimming calmly, including taking breaths at the water's surface, and trainers would be watching for the calf to begin nursing.