The squirrel-toothed rat (Anisomys imitator), also known as the New Guinea giant rat, powerful-toothed rat, uneven-toothed rat, or narrow-toothed giant rat, is a species of rodent in the family Muridae. It is the only species in the genus Anisomys and is found in New Guinea.
The species has been known to eat karuka nuts (Pandanus julianettii), and growers will put platforms or other obstacles on the trunks of the trees to keep the pests out.

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