Amphibian profile

Cane Toad (Rhinella marina)

Rhinella marina

Database risk label: HIGH
Location: Northern & Eastern Australia
Database size: 10-15cm

The Cane Toad is a large, introduced amphibian and Australia’s only true toad. Its scientific name is Rhinella marina; older Australian material may use the former name Bufo marinus. The animal is a HIGH-risk encounter because its defensive toxin can seriously affect native wildlife and can poison people when it reaches the eyes, mouth or other exposed tissues. [1] [3] [5]

Cane Toads were introduced to Queensland in 1935 in an unsuccessful attempt to control pests in sugarcane crops. They are native to the Americas, not Australia. [1] [2] This page focuses on recognising the animal, keeping an encounter low-risk and using official Australian health advice if a person has been exposed to its toxin.

Identification limits: do not rely on one feature

An adult Cane Toad is heavily built, with relatively short limbs and dry, bumpy or warty-looking skin. Its upper surface may be brown, olive-brown or reddish brown, and the underside is usually pale and mottled. Bony ridges run around the eyes and towards the snout, and two large, prominent parotoid glands sit behind the eyes and shoulders. Unlike many tree frogs, Cane Toads lack toe pads and do not climb walls. [1] [2] [3]

Those features are useful only in combination. The Australian Museum cautions that no single feature easily separates a Cane Toad from every native frog. Some native toadlets, including species in the genus Uperoleia, also have parotoid glands, and many Australian frogs can look superficially toad-like. [2] Colour, warty skin, a squat posture or a single gland should therefore never be treated as proof of identification.

The Cane Toad’s low, long trill is a further clue. Calls are most likely at night, particularly on warm nights and after rain, but a call alone is not a reason to approach an animal. [2] The safest identification limit is simple: observe from a distance and do not touch an animal that may be a Cane Toad or a native frog. If a suspected Cane Toad is outside the known established range, record the sighting from a safe distance and report it to the relevant local authority rather than acting on an uncertain identification. [2]

Australian range and habitat

Cane Toads are now found in Queensland, New South Wales, the Northern Territory and Western Australia, with Queensland Government guidance describing them as established throughout Queensland. [1] The Western Australian Museum describes the Australian occurrence as extending from Port Macquarie in New South Wales through Queensland and the northern Northern Territory to the eastern Kimberley. [3] A sighting elsewhere is not automatically a Cane Toad, because accidental transport can place individual animals beyond their established range and native frogs may be mistaken for them. [2]

The species survives in many settings. It is commonly associated with tropical and subtropical lowlands near freshwater breeding sites, but also occurs in urban and urban-fringe areas, savannas, grasslands, agricultural land, disturbed forests and forest edges. [1] [4] Cane Toads need access to moisture: instead of drinking, they absorb water through skin on the belly. [4]

For residents, this means a Cane Toad can turn up in a yard, park, drainage area, farm setting or near a water body without the place being wild bushland. Habitat alone is not a reliable identification test. In any setting, leave space between people, pets and an unidentified amphibian, particularly after dark or near water.

Ecology and behaviour in Australia

Cane Toads are ground-dwelling and forage at night. Their diet includes terrestrial and aquatic insects and snails, while Queensland guidance also records frogs, small reptiles, mammals and birds among their prey. [1] [4] They can use food left outside for pets, which helps explain why human-modified places can provide foraging opportunities. [4]

Breeding is associated with still or slow-moving water. Females lay eggs in long gelatinous strings rather than clumps. Breeding can occur at different times of year when food and permanent water are available, and the onset of the wet season is a favourable period in much of their Australian range. [1] [4] The Western Australian Museum reports that the small, jet-black tadpoles form large schools and that eggs, tadpoles and newly metamorphosed toads are all toxic. [3]

The toxin is a major ecological issue. Cane Toads are poisonous to varying degrees through all life stages. In adults, toxin-producing glands are especially prominent around the shoulders, and an animal can exude toxin when provoked. [4] Native predators that attempt to eat a toad can be poisoned; Australian Government material links Cane Toad arrival at Kakadu with marked declines in some predators, including northern quolls and large goannas. [4] The biological effects of Cane Toads, including lethal toxic ingestion, are listed as a key threatening process under the national environment law. [4]

Safer encounters around homes and public places

A safer encounter starts with distance. Do not touch, pick up or encourage contact with a suspected Cane Toad, its eggs or tadpoles. This protects people from toxin and avoids harming native frogs that can be confused with Cane Toads. [2] [3] Keep children and pets away from an unidentified amphibian, and do not allow a pet to mouth or eat it; Queensland Government guidance notes that Cane Toads can harm domestic animals if eaten. [1]

Avoid needless close inspection. A photo taken from a safe distance can preserve useful visual details without turning a possible native frog into a handling risk. Look for the whole pattern—large, broad head; bony facial ridges; prominent glands behind the shoulders; dry, bumpy skin; short limbs; and a ground-dwelling posture—rather than choosing one trait. [2] [3]

This is not a control guide. The important practical point is to prevent direct contact and rely on appropriate local authorities for reports outside the established range. Do not use a visual guess as a reason to interfere with an animal.

If Cane Toad toxin contacts a person

Cane Toad toxin can poison humans. Queensland’s Poisons Information Centre says it can cause eye pain, severe irritation and temporary visual disturbance when it is squirted into an eye. Swallowed toxin may affect heart function, blood pressure and breathing; severe poisoning can be toxic to the heart. [5]

For toxin on skin, Queensland Health advises removing contaminated clothing without touching the poison, flooding the skin with cool running water, then washing gently with soap and water and rinsing well. [5]

For toxin in an eye, gently flood the eye with water from a cup, jug or slowly running tap and continue flushing for 15 minutes while holding the eyelids open. [5]

For swallowed toxin, carefully clean the mouth with a toothbrush or cloth. If the person feels unwell or develops vomiting, dizziness or chest pain, call the Poisons Information Centre on 13 11 26 or seek hospital care. For vomiting, dizziness or chest pain, Queensland Health says to call Triple Zero (000) or have someone take the person to the nearest hospital. The Poisons Information Centre provides poisoning advice 24 hours a day, seven days a week, from anywhere in Australia. [5]

Frequently asked questions

Is the Cane Toad native to Australia?

No. The species is native to Central and South America and was introduced to Queensland in 1935. The Australian Museum identifies it as Australia’s only true toad. [1] [3]

Can I identify a Cane Toad by its warty skin?

No. Warty-looking skin is only one clue. Native Australian frogs can look toad-like, and some native toadlets also have parotoid glands. Use several features, keep your distance and treat uncertain identification cautiously. [2]

Are Cane Toad eggs and tadpoles toxic?

Yes. The Western Australian Museum states that Cane Toad eggs, tadpoles and metamorphs are toxic. Do not touch them. [3]

When am I most likely to see or hear one?

Cane Toads forage at night, and their calls are most likely on warm nights and after rain. They breed in still or slow-moving water. [2] [4]

Can Cane Toad toxin make a person seriously unwell?

Yes. Eye exposure can cause severe irritation and temporary visual disturbance. Swallowed toxin can affect heart function, blood pressure and breathing. Follow the official first-aid steps above and seek urgent help for vomiting, dizziness or chest pain. [5]

References

Last reviewed: 24 October 2026. This is general information, not a substitute for medical care.