101 years as a Jackel. Spent the last quarter of them in the sewers, except when I ventured out at the end to try to reach an event to get new gear. Found cavemen for the first time...didn't last 5 seconds after getting spotted.
110 years with the Tigers. Stayed around the sewers during the toxic periods and during the final years, ran into pretty much everything, including teradactile-looking things, giant dragon flies and Homo-erectus.. which are absurdly overpowered and always in packs around 20 large.