Muja’s an American alligator living at the Belgrade Zoo in Serbia, and at 80 years old, is assumed to be the oldest alligator in the world. His actual age is a mystery, as he arrived at the zoo in 1936 already fully grown. Surviving the destruction of the zoo in WWII and the NATO bombings in 1999, he’s still trucking along.

In 2012, he had to have his legs partially amputated, due to gangrene, but that hasn’t stopped him from being a badass.