American Bullfrog

American bullfrog, aka Rana catesbiana, comes from Eastern and Central North America, they were introduced into parts of Europe. They can grow up to 8 in. (20 cm), excluding their legs. So that means they are one of the largest frogs in North America. Just to give you an idea how big they are, they can grow up to the size roughly the size of a basketball, if the environment allows them to grow.

To satisfy their massive size, they, of course, eat practically anything to everything that they can fit into their mouths, which includes, small birds, small snakes, ducklings, fish, turtles, rats and even bats! Hunting bats means those bullfrogs are nocturnal and that's also when they start calling out loudly. The males have this pouch under their chin that blows up like a balloon to amplify the sound.

Just want to shock you readers a bit, sometimes those bullfrogs do eat their own as well, I've heard a true fact when I was in the aquarium that there were two frogs trying to eat each other and it ended as one swallowed the other one head first with the other one's legs sticking out the mouth.