The termite mounds in Africa are even bigger than the ones in Australia.
This mound is about 80 years old and was there before the trees. The birds like to perch on the top of termite mounds and deposit seeds, which roll down to the bottom, forming a ring of trees around the mound in an otherwise empty plain.
The termites also seem to be responsible for these strange structures.
They seem to be dirt encased around old branches, which have since rotted away leaving these fragile towers.
