The opossum are a small to medium-sized marsupial, about the size of a large house cat (2-3' long and 4-15 lbs).  Most members of the opossum family have long snouts, a narrow braincases. They can be traced back to the time of the dinosaur.

When threatened or harmed, they will “play possum”, mimicking the appearance and smell of a sick or dead animal. The lips are drawn back, teeth are bared, saliva foams around the mouth, and a foul-smelling fluid is secreted from the anal glands. This physiological response is completely involuntary, rather than a conscious act.

Their stiff, curled form can be prodded, turned over, and even carried away. Many injured opossums have been killed by well-meaning people who find a catatonic animal and assume the worst. The best thing to do upon finding an injured or apparently dead opossum is to leave it in a quiet place with a clear exit path. In minutes or hours, the animal will regain consciousness and escape quietly on its own.

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Reproduction

The opossum has a 12 day gestational period and give birth to anywhere from 5 to 25 young.  They are about the size of a bee and crawl the 2 inches from the birth canal to the mother's pouch.

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Diet

Opossums are opportunistic omnivores with a very broad range of diet. Their unspecialized biology, flexible diet and reproductive strategy make them successful colonizers and survivors in unsettled times.  They like to dine on roots, vegetables, fruit, corn, snails, beetles, ants, eggs, grasshoppers and garbage.

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Habitat
Its range has been expanding steadily northwards, thanks in part to more plentiful, man-made sources of fresh water, increased shelter from urban encroachment, and milder winters. Its range has extended into Ontario, Canada.  They like to create dens in hollow trees or vacated burrows of other animals.  They interact with humans when they select brush piles and under decks to make their dens.

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Havahart® opossum traps will help you with your opossum control needs.