Ewelt said Tuesday that the Philadelphia Zoo will soon move the two female tigers - named Tierny and Koosaka - to another facility. Ewelt says the zoo will still have its male Siberian tiger, Prince.
ZooMontana lost its accreditation with the Association of Zoos and Aquariums earlier this year, leading to the removal of three grizzly bear cubs. An adult grizzly bear also will be relocated.
Ewelt says a veterinarian from the Philadelphia Zoo visited ZooMontana recently and felt the tigers were well cared for, but officials were concerned about the financial future of the Montana zoo.
Ewelt called the decision a disappointment.