Botswana's Okavango Delta is one of Africa's most scenic and unspoiled wilderness areas, however, it is losing its wildlife at an alarming rate.<br /><br />According to research, the species decline is the result of human encroachment, game fences and poaching. The most potent factor, however, is seen to be drought.<br /><br />Al Jazeera's Peter Greste travelled there to find out why.
