GOLD 2 - rate builder
One of the most fearsome animals on earth is a leech - a bloodsucker. It is drawn to its prey, human or animal, by the movement of plant stems or the vibrations of the earth. By lengthening itself to become thinner, it can pass through eyelets in shoes or gaps between threads in socks. Then it fastens itself to the body of its victim by a cup like sucker. It remains fastened after its tree rows of teeth have cut slits through which blood is drawn. A chemical produced by the leech's glands keeps the blood from clotting.