This inhospitable-looking landscape is home to some critically endangered species. The Niger government, this month, formally decreed this whole area - the Termit Massif and Tin Toumma desert - to be a national nature and cultural reserve. At almost 100,000 square kilometres it is the largest single protected area in Africa.   One of Earth's most inhospitable deserts is an important stop-over for migrating wildlife, scientists say. Researchers working in the Termit Massif and Tin Toumma desert in Niger say the whole area should be protected, because it is a biodiversity "hotspot". The rocky massif is home to the Critically Endangered dama gazelle.

The elusive Saharan cheetah, captured here by a camera trap, also lives there. Scientists working for the Sahara Conservation Fund (SCF) are working to have the area declared a National Reserve. The rainy season transforms the arid landscape into a temporary wetland, which many migrating animals depend on.