Something white moved through the vegetation of the Viamonte Canal. Only when I saw its head did I associate it to an opossum. The Thick-tailed Opossum is not uncommon since it is a resident, but an albino individual in fact it is since they are not frequent in the wild. We could not see it in great detail so I might be confusing it with the white ferret, which is not at the reserve but it is presently being sold as a pet. So I consulted Marcelo Canevari, a specialist in mammals and author of several books, and Lucas Damer, a naturalist working at the reserve, to clear up the doubt. Both were of the opinion that it seemed an albino thick-tailed opossum.
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