These animals are native to the South American countries of Brazil and Bolivia, and lab colonies are increasingly common. M. domestica are typically grayish-brown in color, and like many smaller marsupials, are pouchless. Males in our colony weigh between 105 and 125 grams while females tend to be a bit smaller, between 75 and 90 grams. M. domestica are solitary in the wild and must be kept in individual cages except when breeding.
Smaller animals are quite the escape artists, so tight fitting lids are a necessity.
Over the past few years, we have developed a breeding procedure that works well for us and maximizes our breeding success.