The 18-year-old silverback gorilla is a star attraction.
Officials say they've even seen a rise in attendance, especially women who say Shabani is very good-looking.
Zoo spokesman Takayuki Ishikawa says he's often seen striking very masculine poses, like resting his chin in his hands with an intense look on his face.
On social media, women describe the gorilla's good looks and physical physique, calling him "ikemen," or a hunk.
Read more: http://news.yahoo.com/women-flock-japan-zoo-see-hunky-gorilla-044739619.html