Arturo, the only captive polar bear in Argentina, died of complications from old age on July 3 at the Mendoza Zoological Park. He was 30 years old.

Known as one of the world’s saddest animals, Arturo lived in conditions that animal advocates said made him go “insane.” He often exhibited stereotypic behaviors, repetitive movements that arise from the stress of captivity.

“Every part of a polar bear’s body is designed for snow, for ice, for predatory habits and roaming huge distances. For 30 years Arturo was deprived of it.”

You are free now, Arturo