| Description | small; thick velvety gray-brown fur with lighter tones underneath; hairless prehensile tail used to grasp and balance while climbing, also used for carrying nesting materials, not weight bearing; ratlike muzzle; sharp teeth; ears large and thin-skinned; eyes bulge out for good night vision; front legs shorter than the hind legs |
| Sex | males and females similar in appearance |
| Age | premature, pink and hairless at birth; latch onto a nipple on motherâ??s stomach and stay attached until further developed; lifespan 3-5 years |
| Length | body: 4-6" tail: 1.5-3" |
| Wingspan | |
| Weight | 2-5 oz |
| Habitat | native to Brazil, Paraguay and Chile; in their native countries live close to humans and frequently inhabit houses where they are welcomed as destroyers of unwanted insects, rodents and scorpions |
| Status | common in their native habitat; popular for the pet trade, where they are referred to as STO's because of their odor-free, tidy habits and ease of maintenance |
| Range | |
| Behavior | naturally solitary; should be housed individually as cage mates become aggressive, possibly killing each other; sexually mature at 4-5 months; breed in any season; up to 4 litters a year; gestation period 2 weeks; litter size usually 13 babies; babies fully weaned at about 8 weeks; STO's are nocturnal, therefore very active at night and need things to climb on if kept in captivity |
| Diet | in the wild: insects, fruits, vegetable matter; in captivity: mealworms, crickets, pinkie mice, fruits, vegetables, bread, high quality cat food or ferret food; they should be offered a variety of these foods; |
| Vocalization | |
| Other Information | - the Short-Tailed Opposum was the first marsupial to have its genome sequenced - the white flap of skin inside the ear (the tragus) helps it detect ultrasonic frequencies too high for humans to hear - Virginia Opossum and the Sugar Glider are distant cousins - opossums and possums are not the same. Opossums are native to the Americas, while possums are found in Australia. They are only distantly related. |