The bullfrog, Lithobates catesbeianus, is one of the world’s most successful invasive species due to a combination of their biological adaptations and human activities. Each female may lay up to 25, 000 eggs per year some of which will grow to become the largest frogs in North America, capable of eating anything they can fit in the mouths. They’ve benefited from making use of human-made changes to landscapes and flourish in the network of slow-moving warm waters of ponds, reservoirs and canals.
