American Bullfrog

The American bullfrog (Lithobates catesbeianus) is a large frog native to eastern North America. It typically inhabits large permanent water bodies such as swamps, ponds, and lakes. Bullfrogs can also be found in man made habitats such as pools, koi ponds, canals, ditches and culverts. Their presence as a food source has led to bullfrogs being distributed around the world outside of their native range. Bullfrogs have been introduced into the western United States, South America, Western Europe, China, Japan, and southeast Asia. In these places they are invasive species due to their voracious appetite and the large number of eggs they produce, having a negative effect on native amphibians and other fauna. Bullfrogs are very skittish which makes capture difficult and so they often become established. Other than for food, bullfrogs are also commonly used for dissection in science classes. https://en.wikipedia.org/wiki/American_bullfrog