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

Because they have a lot of fat, they are able to maintain their body temperature.

Starfish digest their food by putting their stomachs outside their bodies. This allows them to eat food beyond small crevices and even large pieces of food.

They measure rectal temperature from the anus. We measure rectal temperature from the anus because the rectum is almost always in a closed state, is not easily affected by the outside world, and can maintain a constant body temperature.

The dolphin is 2.8 meters long and the Green anaconda is over 4 meters long.