Heightr 1 3/4" Length 1 7/8" Width 1 1/2" Weight 2.5 oz. Frogs are the masters of transformation, turning from polliwogs into adult frogs in stages. They symbolize coming into one's own power. The large bullfrog tadpole does not mature until the second year. The bullfrog is the largest of North American frogs, growing to a length of 7 1/2". Able to leap many times its own length, bullfrogs have been seen leaping out of the water and catching small birds in flight.