A Twin Cities zoo had to euthanize one of its gorillas this week, despite a yearslong effort to treat the ape's deteriorating brain.

A gorilla at the Como Park Zoo and Conservatory has been euthanized after years of “continued medical deterioration.” The zoo announced that Nyati, a western lowland gorilla, was euthanized Tuesday. Nyati was born at Como in 2017 and diagnosed with Baylisascaris procyonis,

Nyati was euthanized on Tuesday following what zoo officials say was “a significant decline in her quality of life due to long-term neurological complications.”