Saturn, the alligator that survived WWII Berlin bombings dies of old age ~84 (give or take some months) which is quite a lot longer then most of it's kind.
So what did he do for those three missing years roaming the country side, or Berlins sewers? One would think someone would notice an alligator. Not to mention it has to feed so things should "go missing" (small animals mostly).
https://www.bbc.com/news/world-europe-52784240 [bbc.com]