- Hippo eyes, ears and nostrils are located at the top of their head, so they are able to see, hear, and breathe while most of their body is under water.
- Hippo’s have a clear membrane covers and protects their eyes (nictitating membrane) allowing them to see underwater.
- Hippo nostrils close to keep water out when they drop under water
- Hippo’s can hold their breath for several minutes
- Hippos are mostly on the move at night and have excellent night vision