There are 14 species in this family. They are found in South America in scrublands and rocky habitats.
They have long, silky brownish fur; rat-like bodies; long, furry tails; rounded ears; pointed noses; whiskers; and short legs with clawed toes. Most species are around 5-8 inches in length.
They live in burrows and are herbivores. Most species are nocturnal and live in colonies.
Status and range is taken from IUCN Redlist
Status taken from NH Fish and Game
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