Mastacomys fuscus mordicus

1 Broad-toothed Rat at Thredbo, NSW

Mastacomys fuscus mordicus at Thredbo, NSW - suppressed
Mastacomys fuscus mordicus at Thredbo, NSW - suppressed
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Identification history

Mastacomys fuscus mordicus 4 Sep 2025 DonFletcher
Rattus rattus 4 Sep 2025 CarbonAI
Mastacomys fuscus mordicus 4 Sep 2025 OtterTherapy

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1 comment

DonFletcher wrote:
   4 Sep 2025
Hi @OtterTherapy , I see this was well up the hill away from the village, so hopefully there are no rodent baits being used near there. Therefore you might keep seeing these trusting native rodents that often act as if they have been tamed. If this was a Rattus rattus out in the open in daytime, that would mean it was sick, usually from baiting, but Broad Toothed Rats do move about in daylight to some degree. Most of all they need thick ground layer vegetation in which to construct their runways and to provide a space beneath the snowpack, so mowing and heaving grazing are bad for them.

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