Silverback gorilla and his son watch caterpillar in their Higashiyama Zoo enclosure 

Shabani, a 23-year-old silverback and his son Kiyomasa watch the creature slowly crawl towards them in their enclosure at Higashiyama Zoo in Japan, before he cruelly flicks it away. https://www.dailymail.co.uk/news/article-8646351/Silverback-gorilla-son-watch-caterpillar-Higashiyama-Zoo-enclosure.html?ns_mchannel=rss&ns_campaign=1490&ito=1490