Growling grass frog

The growling grass frog, also known by various names such as the southern bell frog, warty swamp frog, and sometimes incorrectly referred to as the green frog, is a captivating ground-dwelling tree frog indigenous to southeastern Australia. These frogs can be found from southern South Australia along the Murray River, through Victoria, into New South Wales, and even in Tasmania. Depending on the region, the names vary: in New South Wales, it’s known as the southern bell frog; in Victoria and South Australia, it’s referred to as the growling grass frog; and in Tasmania, it’s often called the green and gold frog. Interestingly, this species has also established a presence in New Zealand.

These frogs are quite striking in appearance. They can grow up to 10 cm in length and exhibit a bright green and bronze mottled pattern with dark brown bumps and blue-green thighs. At first glance, they might resemble the green and golden bell frog, but upon closer inspection, you'll notice the distinguishing bumps on their back, a shorter call, and a different head and snout shape.

Growling grass frogs prefer to dwell in large swamps, ponds, and lakes surrounded by dense reeds or swampy grasslands. Despite being ground-dwellers, they are surprisingly adept climbers.

A distinctive feature of these frogs is their call—a unique three-part moaning sound. During the breeding season, which extends from spring to late summer, males develop black nuptial pads on their thumbs. If threatened, females can even emit a hissing sound!

Unfortunately, the growling grass frog population is believed to be declining in many areas, although they remain abundant in certain locales. If you're in Australia and wish to keep one as a pet, you can do so with the appropriate permit.