The American bullfrog's scientific name is Lithobates catesbeianus. To reproduce, the male uses the mating grasp, or amplexus, to hold the female. The female then drops her eggs in the water as the male releases sperm.
Metamorphosis is the process of transformation from an immature form to an adult form in two or more distinct stages. Bullfrogs stay tadpoles for around three years, living in the water and growing lungs and legs. They lose their gills. Finally, they hop onto land.
Amphibians are important for many reasons. They keep our insect levels low. In some countries, their body parts can be used for medicine. They are also important predators to invertebrates.