A landmark deal for Libya. How will it work?

According to the Libyan government, militias have agreed to leave Libya's capital, Tripoli, following lengthy negotiations. The deal comes after a series of deadly clashes in the city in recent months. The country has been battered by armed groups who emerged after the overthrow of Muammar Gaddafi in 2011. How will the deal work? Also, following the tragic death of a zookeeper at a Nigerian university, we'll find out how and why Universities across the country have zoos? And why did Algeria decide to build the largest mosque in Africa?