The scruffy mammal participated in a number of scientific studies over his 22 years. He was even featured in a section on senior animals in the 2018 “Guinness Book of World Records”. At 22, Charlie lived beyond his expected years. Generally, male southern sea otters in the wild live for 10 to 14 years, and those in a zoo or aquarium environment can live up to 20 years, the aquarium said.It is with a heavy heart that we share the news that our sea otter Charlie passed away this morning,” the Aquarium of the Pacific said over a black and white photo of Charlie.