That was the reason she said she decided against a necropsy an autopsy for animals.

WSJ: Owner: Dog may have been poisoned at Westminster

Investigators will perform a necropsy to determine what caused the cub's death, Murray said.

CNN: Panda cub dies at Smithsonian's National Zoo

Still, a routine necropsy will be conducted and the AHA will investigate.

CNN: 'Luck' continues filming after third horse dies

The Wildlife Conservation Society, which operates the zoo, made the announcement on Sunday and said a necropsy would be performed to determine the cause of death.

WSJ: Pattycake, gorilla at NYC's Bronx Zoo, dies at 40