The cub, named Anahish, was killed Thursday morning. The zoo says an interior door in the big cat building was inadvertently left open, allowing a 2-year-old male jaguar to enter the area and attack the cub.
Anahish was born Aug. 14 along with a male litter mate named Francisco.
Officials say the cubs’ mother, Stella, is showing signs of agitation. For now, Stella and Francisco will not be on exhibit.
An animal autopsy will be conducted at the UW-Madison School of Veterinary Medicine. The zoo is investigating.