By Georgia Holland
The critically endangered Spotted Tree Frog reintroduced into Kosciuszko National Park is surprising researchers by showing outstanding survival rates and breeding sooner than expected.
Four hundred of the grey-green coloured amphibians were released into the park three years ago and monitoring shows that more than 50 per cent of the frogs have survived and are breeding.
The frogs were bred in captivity at the Amphibian Research Centre in Melbourne then were placed in the park.
The endangered frog was extinct in the wild in 2001 in NSW, a result of a fungus wiping out the last known wild population.
Previous attempts to reintroduce the species into the park have failed because of the fungus.
The Office of Environment and Heritage says they are quietly confident their approach will prove successful in the long term.