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Eastern Chestnut Mouse

Pseudomys gracilicaudatus

RodentsWild lifespan is generally short, often around 1–2 years, with rapid generation turnover.

The eastern chestnut mouse (Pseudomys gracilicaudatus) is a small native rodent from eastern Australia, named for its warm chestnu···

Dugong

Dugong dugon

MammalLongevity is measured in decades and is often suggested to reach around 50–70 years; maturity is slow and reproduction is low.

The dugong (Dugong dugon) is the only living member of the family Dugongidae and one of the ocean’s most distinctive herbivorous ···

Drop Bear

Fictional: Thylarctos plummetus (commonly used joke name)

CarnivoraFictional: there is no verifiable lifespan information.

The drop bear is a famous piece of Australian folklore—a tongue-in-cheek “wildlife warning” often told to visitors. In the stor···

Dingo

Canis lupus dingo (also commonly written as Canis familiaris dingo)

CarnivoraWild lifespan is commonly around 5–10 years, strongly influenced by food supply, disease, management and road mortality.

The dingo is Australia’s iconic wild dog, known for its lean build, upright ears and typically sandy to reddish coat (though blac···

Cuviers Beaked Whale

Ziphius cavirostris

CetaceaLongevity is measured in decades and is often suggested to be around 40 years or more, with sexual maturity reached after several years.

Cuvier’s beaked whale (Ziphius cavirostris) is one of the world’s most widespread—and most elusive—beaked whales. It is strong···

Common Dunnart

Sminthopsis murina

RodentsMany individuals live only about 1–2 years in the wild, reflecting a fast life cycle and rapid generation turnover.

The common dunnart (Sminthopsis murina) is a small, insect-eating marsupial native to south-eastern Australia. Active mainly at du···

Common Dolphin

Delphinus delphis

CetaceaWild lifespan is commonly around 20–25 years, with some individuals living longer.

The common dolphin usually refers to the short-beaked common dolphin, Delphinus delphis. It is famous for its speed, spectacular l···

Common Brushtail Possum

Trichosurus vulpecula

RodentsWild lifespan is commonly around 5–7 years, with some individuals reaching about 10 years; longer lifespans are possible in captivity.

The common brushtail possum (Trichosurus vulpecula) is one of Australia’s most familiar nocturnal marsupials and one of the speci···

Bush Rat

Rattus fuscipes

RodentsWild lifespan is often about 1–2 years, though some individuals can survive longer under stable conditions.

The bush rat (Rattus fuscipes) is a native Australian rodent found mainly in the forests and dense shrublands of south-eastern Aus···

Brush-tailed Rock-wallaby

Petrogale penicillata

RodentsWild longevity is often around 10 years, and some individuals may live longer in well-protected sites.

The brush-tailed rock-wallaby (Petrogale penicillata) is an agile, cliff-dwelling marsupial native to rocky escarpments and gorges···

Brown Rat / Norway Rat

Rattus norvegicus

RodentsAverage wild lifespan is often around one year, with some individuals living 2–3 years; lifespans can be longer in captivity or stable sheltered environments.

The brown rat—also widely known as the Norway rat (Rattus norvegicus)—is one of the most widespread and human-associated rodents···

Brown Antechinus

Antechinus stuartii

RodentsMost individuals live about 1–2 years in the wild; females may reach 2–3 years, while males commonly die after their first breeding season.

The brown antechinus (Antechinus stuartii) is a small carnivorous marsupial from eastern Australia, belonging to the family Dasyur···

Broad-toothed Rat

Mastacomys fuscus

RodentsWild lifespan is often around 1–3 years, with some individuals potentially living longer under stable conditions.

The broad-toothed rat (Mastacomys fuscus) is a stocky, grass-eating rodent native to cool, wet highland environments of south‑eas···

Bottlenose Dolphin

Tursiops truncatus

CetaceaWild bottlenose dolphins commonly live 30–40 years, and some individuals, especially females, may reach over 50 years; lifespans in captivity can sometimes be longer.

The bottlenose dolphin (most commonly referring to the common bottlenose dolphin, Tursiops truncatus) is one of the best-known dol···

Blainvilles Beaked Whale

Mesoplodon densirostris

CetaceaLongevity is estimated at around 30–40 years based on tooth and bone growth studies.

Blainville's beaked whale (Mesoplodon densirostris) is a medium-sized deep-diving toothed whale in the family Ziphiidae. It is···

Black-striped Wallaby

Notamacropus dorsalis

MammalEstimated wild lifespan is around 7–10 years, with potentially longer lifespans in captivity.

The Black-striped Wallaby (Notamacropus dorsalis, formerly Macropus dorsalis) is a medium-sized, grass-eating macropod native to e···

Black Rat

Rattus rattus

RodentsWild black rats generally live for about 1–1.5 years, with some individuals surviving up to 2–3 years under favourable conditions.

The black rat (Rattus rattus) is a small to medium-sized rodent in the family Muridae and one of the most widespread mammal specie···

Black Flying-fox

Pteropus alecto

ChiropteraEstimated lifespan is about 8–12 years in the wild, with potentially longer lifespans in captivity.

The black flying-fox (Pteropus alecto) is a large fruit bat in the family Pteropodidae and one of the most abundant flying-foxes i···

Bare-nosed Wombat

Vombatus ursinus

RodentsAverage lifespan is about 10–15 years in the wild and more than 20 years in captivity.

The bare-nosed wombat (Vombatus ursinus), also widely known as the common wombat, is a medium-sized herbivorous marsupial and the ···

Australian Sea Lion

Neophoca cinerea

CarnivoraIn the wild, Australian sea lions generally live for around 15–20 years, with some individuals—especially females—living longer.

The Australian sea lion (Neophoca cinerea) is one of the world's most range-restricted pinnipeds and the only sea lion species···

Australian Fur Seal

Arctocephalus pusillus doriferus

CarnivoraWild Australian fur seals generally live for around 15–20 years, with some individuals surviving longer, especially females.

The Australian fur seal (Arctocephalus pusillus doriferus) is a large otariid seal and the Australian subspecies of the brown fur ···

Arnouxs Beaked Whale

Berardius arnuxii

CetaceaExact longevity is unknown, but they are presumed to live for several decades, similar to other large beaked whales.

Arnoux's beaked whale (Berardius arnuxii) is a large beaked whale in the family Ziphiidae and one of the least-known cetaceans···

Andrews Beaked Whale

Mesoplodon bowdoini

CetaceaExact longevity is unknown, but Andrews' beaked whales are presumed to live for several decades, similar to other medium-sized beaked whales.

Andrews' beaked whale (Mesoplodon bowdoini) is a medium-sized, extremely poorly known beaked whale in the family Ziphiidae. It···

Yellow-faced Whip Snake

Demansia psammophis

SquamataWild individuals are thought to live for several years and potentially close to a decade under favourable conditions.

The Yellow-faced Whip Snake (Demansia psammophis) is a slender, fast-moving elapid native to Australia and a member of the genus D···

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