The peace treaties at the end of the war gave the German colonies to the French and the British. Leeches are worms which live by sucking the blood of larger animals. They are found on land and in the water. At the front of the leech is a small sucker which contains the mouth. A large sucker is on the back end.
Leeches can grow to be eight inches long.
They breathe through their skin. Their digestive system can store food for several months. They can have up to four pairs of eyes. Leeches contain both the male and female reproductive organs but only the sperm of another leech can fertilize the egg. In Europe in the 18th and 19th centuries leeches were used medicinally to drain off what was thought to be excess blood.