A mouselike opossum with large ears and no marsupial pouch, native to Central and South America.
- Genus Marmosa, family Didelphidae: several species.
- He suggested that Robinson's mouse opossum was a major nest predator at his study site.
- Also called mouse opossums and rat opossums, their appearance is more suggestive of shrews.
- These creatures are prey to vertebrates like birds, mouse opossums, salamanders, and frogs.
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Syllabification: mouse o·pos·sum
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