Earthworms are round soft bodied animals.

Their bodies are divided into a number of similar rings.

The head tapers to a point.

The tail is broad and flat.

Pores on the skin cover its body with slime. This slime keeps the worm clean, makes it slippery and kills germs.

The pointed nose drills into the soil and the flat tail presses it tight.

The slime is then used to cement the burrows.