“It’s just an incredibly unfortunate accident,” Bill Zeigler, the Brookfield Zoo’s senior vice president of animal programs, told the Chicago Sun-Times. “The staff worked extremely hard, even some of our mammal keepers were in the water. Everyone is very bummed out about the whole thing.”
Veterinary staff was promptly on the scene to provide medical treatment to the affected stingrays. Additionally, immediate action was taken by animal care staff to rectify the situation and get the levels back to normal. Despite tireless efforts by staff, all the animals, which included four southern stingrays and 50 cownose rays, succumbed.
Zoo staff said they are still trying to determine the cause of Friday’s accident.