Why are beavers on the coin?

What do a dogs skin feel like when they have a tick? How old would you be if you were fourscore and four years old? What can cause big fist size lumps under a horse's belly? Is a kangaroo oviparous or viviparous? A tool like a spade but wider? Who eats the polar bears? What is the inciting incident in cat on a hot tin roof? Can dogs eat cooked lamb bones? How many weeks does dos stay on it heat? What is better as a pet a boy rat or a girl rat? What could cause a cat to dislocate it's shoulder? What is rabbit's gender? List of small rodents? What does it mean when my dog is whining all night? What is the flammability of wood? What should you do stay inside or outside? How many pieces of hair do you lose a day? Is it possible to over run an Australian Shepherd? How many baleen whale are left in the world? What animal would come into my garden kill a rat by biting off its head then leave the body and head on the ground Isn't it only humans that kill for sport?

Why are beavers on the coin?