The quacking frog (Crinia georgiana) also known as the red-thighed froglet due to its legs tending to be bright red. It is a species of frog from the Myobatrachidae family and is in a clad with five other species. The frog is well known for the sound it produces which resembles a quack. It has up to 11 notes and can change the notes in their call. It has larger testes compared to other frogs within the genus and has started to be used in experiments. This frog is found in southwest Australia. It is found in ponds and pools and other moisture filled areas. These frogs engage in polyandry and can result in multiple paternity of its offspring. Additionally, the tadpoles of this species can change the rate they metamorphosize depending on the conditions. The males tend to have larger arm girth and can adopt different mating strategies depending on size. The mating strategy is dependent on male density. The frogs also vary in terms of color and texture of its skin. The tadpoles are generally golden with transparent tails. Description Crinia georgiana is a short or squat froglet that appears flattened and has a large head and short limbs. Characteristic of its family, this frog has long and unwebbed fingers and toes. The dorsal skin can be smooth, but it is usually bumpy or tubercular, while the underside is finely granular. The genus is polymorphic, however, meaning there is great variation in colour and texture of the skin within each species. In addition, some individuals may have a backside with skin folds, while others do not. Its colouring ranges from orange to brown to almost black on its back and may include brown marbling or brown stripes on either side of its back, which aid in camouflage. The belly of males is dirty-grey, while females have a bright white abdomen; both have a white spot at the base of each limb. The groin and anterior and posterior surfaces of the thigh are bright red and the upper eyelids are either red or golden. Its hands are pale in colour. These traits are characteristic of the quacking frog and make it easily distinguishable from other species. Tadpoles are golden in colour and their tail is transparent. The Crinia georgiana is unique compared to other species in the same genus as the testis mass is significantly larger. This is attributed