Gorilla's pensive pose after dispute with mate goes viral

A gorilla's pensive pose after a dispute with his mate has gone viral online. The video shows Kiyomasa, a 13-year-old western lowland gorilla at a Japanese zoo, sitting in a human-like thinking posture. Kiyomasa is the son of the famous silverback gorilla Shabani, and his expression has been widely described as relatable to human arguments.