A cute story from 2017.

In Tobu Zoo in Miyashiro, Saitama Prefecture, Japan, there is a Humboldt Penguin enclosure. One penguin known as Grape-kun had a rough time of things having been rejected by his partner of ten years for a younger penguin and was then isolated from the rest of the enclosure as a result, coming near the end of his life span come 2017 at aged 21 it seemed like Grape-kun would die alone but in April 2017, a collaboration with surprise anime hit Kemono Friends saw 60 or so cutouts of the cast placed in all the enclosures of the zoo, Hululu a Humboldt Penguin Girl was placed in Grape-Kun's enclosure and the little old penguin fell in love with the cardboard cutout becoming an internet sensation over night, the attachment so strong that the cutout was kept in Grape-Kun's enclosure long after the collaboration finished, even Hululu's voice actress would visit the enclosure; Grape-Kun would die in October from old age, among the shine to the beloved penguin is an illustration from Kemono Friends artist of Hululu and Grape-Kun together shown below.

I'd like to think Grape-Kun died no longer feeling lonely, even if Hululu wasn't real, his final year cuddling up to his cardboard waifu gave him thousands of friends and well wishers.