Most wolves weigh about 40 kilograms but the heaviest wolf ever recorded weighed over 80 kilograms! | In ancient Egypt, doctors used jolts from the electric catfish to reduce the pain of arthritis. | 898 tornadoes were recorded to have occurred in the United States in the year 2000. | The waste produced by one chicken in its lifetime can supply enough electricity to run a 100-watt bulb for five hours. | Bill Gates' first business was Traff-O-Data, a company that created machines which recorded the number of cars passing a given point on a road.