Cute baby hippo plays in a pool at American zoo
2 September 2015 Last updated at 15:28 BST
A baby hippo has been making a big splash in her pool at San Diego Zoo, in America.
The little hippopotamus called Devi, has been learning how to swim in the deeper end of her pool, with her mother's help.
Her keepers also said the hippo, born in March this year, has been learning how to do a barrel roll, and has been taking a bite from some the plants that grow in the pool.
Hippopotamuses are under threat in the wild because the areas where they live are being destroyed to make space for farming, and many are killed illegally by poachers who hunt the animals for the valuable ivory in their tusks.