Bull Frog

The Indian bullfrog is a big, green amphibian that hops around wetlands in South and Southeast Asia. Males and females look different, and these frogs can cause trouble when they invade new areas. Scientists have studied them for their appetite for mosquitoes.

• Males and females have noticeable differences in appearance.
• Their tadpoles can outcompete other frog species.
• They thrive in wetland habitats but spread aggressively when introduced elsewhere.