Often simply known as the bullfrog in Canada and the United States, is an aquatic frog, a member of the family Ranidae, or “true frogs”, native to much of North America. The American bullfrog has been widely introduced to most western states, and is now very common there, especially in California, and poses a serious threat to native species, such as the California Red-legged Frog because bullfrogs are aggressive and will eat anything smaller than themselves. They are considered a factor of the red-legged frogs' decline.
This is a frog of larger, permanent water bodies, swamps, ponds, and lakes, where it is usually found along the water's edge. On rainy nights, bullfrogs, along with many other amphibians, travel overland, and may be seen in numbers on country roads. American bullfrogs live longer in warm weather. They have been widely introduced across North America. The original, naturally determined range did not include the far western regions where it is found today.
This was taken at the Vancouver Aquarium.