Kenya's Maasai people, who depend on tourists visiting the Maasai Mara game park, are facing big challenges after a dramatic fall in wildlife numbers. Visitors were already staying away due to fears of terror attacks, poor infrastructure and bad land management. In the last 10 years, poaching, population growth and overgrazing have led to a 43% fall in the amount of wildlife found in the buffer zones. Conservationists say changes are needed, but it is going to take a fundamental shift in the thinking of the local people.