Dolphin dies at SeaWorld San Antonio, another being treated

The latest addition to SeaWorld San Antonio, Discovery Point is a new and expanded coastal habitat for dolphins opening in May 2016. The latest addition to SeaWorld San Antonio, Discovery Point is a new and expanded coastal habitat for dolphins opening in May 2016. Photo: Courtesy Photo Photo: Courtesy Photo Image 1 of / 41 Caption Close Dolphin dies at SeaWorld San Antonio, another being treated 1 / 41 Back to Gallery

A 12-year-old Pacific white-sided dolphin has died at SeaWorld San Antonio, and another dolphin is being treated for a possible infection.

The cause of death hasn't been determined for the dolphin, named Dart, who was born at the park in 2003, SeaWorld announced Saturday in a blog post. Dart had been monitored for about a month for "health-related issues," the company said, without describing the health problems.

Another Pacific white-sided dolphin named Betty, who is 37, is under 24-hour veterinary care for "indications of inflammation or a possible infection," the blog post says.

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A spokesperson for SeaWorld San Antonio didn't immediately respond to a request for comment on Monday afternoon.

Several animals have died at SeaWorld San Antonio in the last year. The killer whale Unna died in December from a fungal infection, while a 2-year-old beluga whale named Stella died in November after being treated for gastrointestinal problems. A newborn beluga died in July after being born premature.

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"It has been a difficult time for our San Antonio team, with several other recent deaths," SeaWorld said in the blog post. "While there are no apparent connections between these deaths, our veterinarians will be conducting a thorough review of all the cases as they work through the post-mortem examination process."