'Kibabu', the resident Silver Back at Mogo Zoo, is turning 40 years of age on Thursday. Sally and her team would like to invite everyone along to help Kibabu celebrate this amazing milestone. If your wondering what present to give him, bring along your old mobile phone for recycling. Mobile phones contain, Coltan, a mineral used in mobile phones, mined in many parts of Africa, causing a huge amount of deforestation that affects many species, including Gorilla's. A special keeper presentation, including a huge cake for Kibabu, will commence at 12pm in front of the Gorilla Exhibit.