It is said that they cannot distinguish colors.

When viewed from underwater, their white bellies allow them to blend in with the sunlight, making them harder to spot by other creatures.

The orca is said to be the fastest of all cetaceans at 55 km/h.

Penguins live only in the Southern Hemisphere. Penguins are thought to be found only in cold areas, but they also live in warm areas.

There is one at the tip of each of its five arms. Some starfish have more than five arms, but this is very rare.