Black rat

Black Rat

The black rat (Rattus rattus), also known as the ship rat, roof rat, or house rat, is a common long-tailed rodent of the stereotypical rat genus Rattus, in the subfamily Murinae.

Description

The black rat is between 16.5 and 24 cm long, not including a tail of the same length. It weighs between 75 and 230 grams. Despite its name, the black rat exhibits several color forms. It is usually black to light brown in color with a lighter underside.

Distribution and Habitat

Originally native to India and Malaysia, the black rat migrated to Europe during the Roman times and has since spread to many parts of the world. They are commonly found in urban areas, but can also inhabit fields, farms, and woodlands.

Behavior

Black rats are nocturnal, with peak activity times being just after sunset and just before sunrise. They are excellent climbers and prefer to nest off the ground in trees or in the upper floors of buildings.

Diet

The black rat is an omnivore, and will consume a wide variety of foods, but they have a strong preference for grains, fruits, nuts, and seeds.

Impact on Humans

Black rats are considered a pest species due to their habits of living in human houses and their role in spreading disease. They are notorious for their role in spreading the bubonic plague during the Middle Ages.

See Also

• Brown rat
• Rat
• Rodent