We asked you to locate the Maasai Mara National Reserve in today's Geo Quiz.

The answer is south western Kenya.

Kenya map: source CIA

The Masai Mara is a famous for its amazing wildlife. Wildebeest, zebras, impalas, and giraffes -- all roam across the plains of the Masai Mara. But Kenyan conservationists are now sounding an alarm.

They say the animals of the Masai Mara reserve are at risk and in widespread decline.

Listen to our interview with one of the scientists who helped to carry out a new study of the Maasai Mara wildlife. Robin Reid is Director of the Center for Collaborative Conservation at Colorado State University:

According to the study, the number of giraffes, impala, and warthogs has "decreased substantially" in only 15 years as they compete for survival with a growing concentration of human settlements in the region. A total of six species-giraffes, hartebeest, impala, warthogs, topis and waterbuck-declined markedly and persistently throughout the reserve.

WATCH A FILM: Counting in a disappearing land- The story of the research project that aims to establish links between people, livestock and wildlife in the Kenyan Maasai Mara.