We picked the top 10 natural wonders around the world and included Desert Sand Dunes, South Africa, in which 90 percent of the continent’s _____ live.

We picked the top 10 natural wonders around the world and included Desert Sand Dunes, South Africa, in which 90 percent of the continent’s _____ live.

1. hippopotamuses
2. elephants
3. rhinos
4. savannah monitor lizards

The correct answer is rhinos.