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Yellow-spotted Bell Frog

Scientific nameRanoidea (Litoria) castanea

Conservation status (IUCN)

Critically Endangered

The Yellow-spotted Bell Frog is an Australian native tree frog. For thirty years this amphibian was feared extinct. When a small population was rediscovered, Taronga leapt into action to ensure their species survival. 

Visitor tips for Sydney

You can see Yellow-spotted Bell Frogs in ARC. 

Fun facts about Yellow-spotted Bell Frogs 

We bet you didn't know these facts this Australian amphibian. 

Did you know?

A Yellow-spotted Bell Frog can live up to 10 years.  
Permanent waterbodies like ponds, lakes, and wetlands with grassy vegetation.
Invertebrates
Isolated pockets of the tablelands of NSW.
Yellow-spotted Bell Frogs can be between 50-90mm long
Males call most of the year, with short grunts that sound like a revving motorbike
A Yellow-spotted Bell Frog can live up to 10 years.  
Permanent waterbodies like ponds, lakes, and wetlands with grassy vegetation.
Invertebrates
Isolated pockets of the tablelands of NSW.
Yellow-spotted Bell Frogs can be between 50-90mm long
Males call most of the year, with short grunts that sound like a revving motorbike

Conservation status (IUCN)

Critically Endangered

Yellow-spotted Bell Frog Conservation 

In 2018, over 750 Yellow-spotted Bell Frogs were returned to their natural habitat. In 2019, a further 1000 frogs were released. We are continuing to breed and study the frogs to secure their future.  
Though the threat posed by chytrid remains, their extinction has been prevented for now, giving time for scientists to explore new ways to fight the fungus.  
Learn more
Released Yellow-spotted Bell Frogs have been fitted with small, custom radio-transmitters to allow the conservation team to continue to study the frogs behaviours in the wild. This helps inform future strategies to safeguard the species. Photo by Michael McFadden.

Conservation stats 

Taronga's Yellow-spotted Bell Frog conservation stats - and counting!

Taronga has bred and released over 2,160 Yellow-spotted Bell Frog eggs to the wild to date.
*Data updated 2025 
Yellow-spotted Bell Frog tadpole undergoing metamorphosis Photo: Michael McFaddon

Yellow-spotted Bell Frog deep dive

Discover more about what makes these Australian amphibians so iconic!

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