Pata Zoo has reopened Auntie Bua’s enclosure for limited public viewing, as animal rights groups press for the release of Thailand’s last gorilla, long described as “the world’s loneliest gorilla.”

Pata Zoo is offering a reward of 100,000 baht for information leading to the arrest of five animal-rights activists it accuses of defacing private property by painting slogans on the exterior wall of Pata Pinklao department store last week, calling on the store to release the gorilla from the zoo inside.