Columbia Spotted Frogs lay their eggs in water. They are laid at the surface in large, globular masses of 200 to 500 eggs. Tadpoles are black after hatching and their eyes are located on the top of their head. Tadpoles eat mostly vegetation while adults will eat insects, mollusks, crustaceans, and spiders night or day. They are very opportunistic feeders and use their long, sticky tongues to catch their prey. This amphibian doesn’t have many ways in which to defend itself from predators, but its coloring helps it to blend into its surroundings. Gopher snakes, herons, and bullfrogs are common predators of adult frogs. Tadpoles are often consumed by dragonfly nymphs, aquatic beetles, fish, and garter snakes.