Police in San Francisco describe the scene when officers arrived at the zoo to help the men who were mauled.
The San Francisco Zoo will be adding a fence, surveillance cameras and hot wire to an exhibit where a tiger escaped on Christmas Day. It killed one man and mauled two others. The zoo will remain closed for another day.
Watch a
of Andrew Baker, vice president of animal programs at the Philadelphia Zoo, discuss the precautions the zoo takes to preserve the safety of visitors.
Read an
about the mating of Amur tigers Kira and Dmitri at the Philadelphia Zoo.
View a
of Amur tigers Kira and Dmitri.
Read an
about the tiger cubs Terney, Changbai, and Koosaka's debut at the Philadelphia Zoo. Includes a photo gallery of the cubs.
Watch a
of the Philadelphia Zoo's tiger cubs playing in their new environment.
about the female tiger cubs Terney, Changbai, and Koosaka and watch a video of the cubs.
For more information on the Philadelphia Zoo, visit the zoo
.