Flatworm Phylum: Platyhelminthes Class: Turbellaria Order: Tricladida	A flatworm gliding along under the surface of the water. Flatworms are unsegmented worms with flattened bodies. Their flatness allows them to shelter beneath stones.
	Habitat	They are found in ponds and rivers.
	Moving around	The surface of their bodies are covered with cilia (tiny hairs) which are kept in constant motion, allowing them to glide over plants and stones. They secrete slime which acts as a lubricant.
	Feeding Flatworm head	They eat: small animals including crustaceans, and insects, alive or dead. Their mouth is a small hole found halfway down the underside of their body. They can sense when food is around, because of sensory cells on their head. They extend a muscular tube out of their mouth, and suck up food. This tube is known as a "pharynx". If the animal is small, it will be swallowed whole. If its prey food is large, then the flatworm will cover it with slime, then suck off a bit at a time. Food is digested in the animal's gut, and waste material is excreted through the mouth. They are eaten by: leeches, great diving beetles and greater water boatmen,
	Reproduction	Flatworms can regenerate an entirely new body from just a tiny fragment of themselves. This is known as asexual reproduction. They can also reproduce sexually. A cocoon containing eggs, swells in the body of the flatworm. They release the cocoon, and attach it to water weeds or stones. The cocoon contains yolk, which nourishes the eggs. The eggs hatch into miniature versions of their parents.
	Breathing	They have a very thin skin, and can absorb oxygen and release waste gases through their permeable skin. Being flat increases the area of skin exposed to the water, which improves the flatworm's oxygen uptake.
	Size	10-40 mm
	Fun Fact	Flatworms can be seen gliding along under the surface of the water.