The black eared opossum (Didelphis marsupialis), also known as the common opossum, is a remarkable marsupial native to Central and South America. Widespread from southern Mexico through the Amazon basin and into eastern Bolivia and Brazil, the black-eared opossum thrives in a variety of habitats, from dense rainforests to urban parks and gardens. This adaptable survivor is instantly recognized by its dark ear patches, thick fur, and dexterous, grasping tail.
As a quintessential nocturnal animal, the black eared opossum emerges after sunset, using its sharp sense of smell and tactile whiskers to seek out food. Its omnivorous diet includes insects, fruits, small vertebrates, and even human food scraps, making it an important agent of pest control and seed dispersal within its ecosystem. By consuming insects and rodents, it helps regulate populations that might otherwise damage crops, while eating fruit and moving about at night enables the spread of seeds, promoting forest regeneration.
Despite their shy nature, black eared opossums are excellent climbers, easily scaling trees with their prehensile tails and nimble feet. Females carry their undeveloped young in a pouch, a trait shared with other marsupials, ensuring their protection until they are ready to explore their world.
The black eared opossum is sometimes called the common opossum because of its wide range and abundant populations.
Its prehensile tail acts like a fifth limb, helping it balance and carry nesting materials.
Females can give birth to up to twenty tiny young, but only as many as can fit in the pouch will survive.
When threatened, it may “play dead” (thanatosis) to avoid predators—a behavior known as “playing possum.”
The species is resistant to some snake venom, allowing it to prey on venomous snakes.
Black eared opossums are vital for seed dispersal, aiding forest regeneration through their droppings.
They have a keen sense of smell and hearing, perfect for nocturnal foraging.
Unlike rodents, opossums have opposable thumbs on their hind feet, assisting them in climbing and grasping.
Their fur varies in color but always features distinctive dark markings on the ears.