Gray short-tailed opossums are relatively small animals, with a superficial resemblance to voles.

The gray short-tailed opossum is found generally south of the Amazon River, in southern, central, and western Brazil.

Gray short-tailed opossums are sexually mature at five to six months of age, and live for up to forty nine months in captivity.

Gray short-tailed opossums eat rodents, frogs, reptiles, and invertebrates, as well as some fruit.

The tammar genome appears to have more rearrangements than those of both the human and the gray short-tailed opossum, another sequenced marsupial.

Monodelphis domestica (gray short-tailed opossum)

Gray Short-tailed Opossum (Monodelphis domestica)

The gray short-tailed opossum (Monodelphis domestica) is a small South American member of the Didelphidae family of opossums.

The biodynamics of arboreal locomotion: the effects of substrate diameter on locomotor kinetics in the gray short-tailed opossum (Monodelphis domestica).

The gray short-tailed opossum possesses several features that make in ideal research model, particularly in studies of marsupials, as well as the immunological and developmental research on mammalian systems.

The gray short-tailed opossum ( Monodelphis domestica ), a small (60-150 g) marsupial native to scrub forests of southeastern Brazil, provides new opportunities for study of olfactory communication and pheromonal activation of reproduction.