The brown four-eyed opossum builds nests made of leaves and twigs in tree branches or under rocks and logs.

The brown four-eyed opossum (Metachirus nudicaudatus) is a pouchless marsupial of the family Didelphidae.

Brown four-eyed opossum (Metachirus nudicaudatus)

The genus formerly included Metachirus nudicaudatus, but this species lacks a pouch and so is now considered a separate genus.

The brown four-eyed opossum (Metachirus nudicaudatus) is a pouchless marsupial of the family Didelphidae.

Brown four-eyed opossum (Metachirus nudicaudatus)

We studied the distributions and colonization-extinction dynamics of five species of opossums (Didelphis marsupialis, Marmosa robinsoni, Philander opossum, Caluromys derbianus, and Metachirus nudicaudatus) on 12 small islands in Gatun Lake in central Panama.