One of the iconic animals of the Okavango Delta has to the Hippo, and there are many of these ugly, rotund creatures that call the Delta home. Their deep honking noises can often be heard booming across the lagoons. They can stay submerged for up to six minutes at a time.

This photo was taken in the Okavango Delta of Botswana - the last true wildlife reserve where its natural inhabitants live in the wild without much human contact.