A female frog's reproduction system includes ovaries, oviducts and two uteruses. The ovaries produce eggs, the oviducts connect the frog's uteruses to her ovaries and the uteruses store the eggs until they are released during mating. A female frog does not raise her young inside herself during a gestation period.

Both genders of frogs contain their entire reproductive system within their own bodies. Amplexus is the pose assumed by amphibians during their mating ritual. Amplexus is a form of external fertilization as the fertilization of the eggs occurs outside of the animals' bodies. During amplexus, the male frog wraps his hind legs around the female frog and holds her body with his front legs.

Female frogs are significantly larger than male frogs in order to support the male frog while mating and to have adequate space to store and transfer her eggs in her uteruses. The female frog's cloaca release eggs, often into water, and the male protects the eggs by coating them with sperm. Cloaca are located in female frogs near their kidneys, and release both urine and waste as well as producing eggs for fertilization. The fertilized eggs are abandoned by their parents and turn into tadpoles after 30 to 40 days.