The Pantheropis obsoletus, commonly known as the black rat snake, is a non-venomous constrictor found in North America. It thrives in diverse habitats, including forests, fields, and farmlands. Noted for its sleek, black coloration in adulthood, it can grow up to 8 feet long. This species plays a vital role in controlling rodent populations.

Pantheropis obsoletus, commonly known as the Eastern Rat Snake or Black Rat Snake, is native to the central and eastern United States. Its geographical distribution includes states from the Midwest, such as Iowa and Illinois, stretching eastward to the Atlantic Coast states like New York and South Carolina, and extending south to the Gulf Coast, including Louisiana and Florida.

The Eastern Rat Snake typically inhabits a variety of environments, including deciduous forests, mixed woodlands, swamps, farmlands, and suburban areas. They are highly adaptable and can be found in both humid and dry climates, showing a preference for areas with abundant cover such as wooded areas and fields.

As a non-venomous constrictor, Pantheropis obsoletus plays a key role in controlling rodent populations, thereby contributing to the ecological balance. They are known to be excellent climbers, often found in trees or abandoned buildings. This adaptability allows them to exploit a range of ecological niches, from ground level to arboreal habitats.