Because they’re not native to the Canadian southwest and have few natural predators, such as alligators, water snakes, and kingfishers in their native American southeast, some of the bullfrogs are growing to abnormally large sizes (American bullfrogs are the largest North American frogs and typically grow to about 7 inches, and weigh up to 1.5 pounds.)
According to National Geographic, American bullfrogs can lay as many as 20,000 eggs, with tadpoles sometimes reaching lengths of 7 inches. A group of bullfrogs is called an army, or colony. The voracious amphibians feed largely at night, ambushing prey by lunging with their powerful hind legs.
originally posted by: lostbook
You heard right, ATS. Giant Bullfrogs as big as 2 ft. in length are invading a remote island in Vancouver, British Columbia; their large size is apparently achieved because they have no predators there.