Okay, in my library I found in Grzimek’s Animal Life Encyclopedia Volume 12, Page 349 (copyright 1972) that tigers have been found to jump down up to 10 meters (32.8 feet) with the average of 5-6 meter jumps (16-19.7 feet).
In Walker’s Mammals of the World, Fifth Edition, the citation in Volume II on page 1209 says, “It (tiger species) has been reported to cover up to 10 meters in a horizontal leap.”
Based on these citations, it would have been completely feasible for Tatiana, the San Francisco Zoo’s Siberian tiger to have jumped out of her enclosure.
