Potamus Horse

The “Potamus Horse” lives in rivers of rainforest and can last three and a half hours under water, that's more than a whale can last under water. The Potamus Horse uses its nostrils to catch air after every three hours. The Potamus Horse is an adapted Hippotamus due to environmental changes the Potamus Horse has fins and a tail for swimming and razor sharp teeth and is two times bigger than a modern day Hippotamus.