In 2007, the Japanese Tobu Zoo bought an 11-year-old Humboldt penguin named Grape-kun and his mate Midori. They’d been living together for 10 years, but then Midori left him for a younger penguin. Grape-kun became really reserved.

But in April 2017, he started paying attention to an anime cutout of Hululu, an anthropomorphic Humboldt penguin from Kemono Friends, that was installed to attract visitors. Grape-kun would spend hours trying to reach it. The penguin became really popular on social media, but later he started experiencing problems with his health and died the same year.