The answer to 'what is rat' is a rodent that is a common household pest. Rats are typically larger than mice, with a longer body, larger feet, and a longer, scaly tail. They are known to be destructive, chewing through materials like wood, wiring, and insulation, and can also spread diseases. Rats are nocturnal and prefer to live in dark, secluded areas like attics, basements, and behind walls.
Rats can be difficult to get rid of and often require professional pest control services to effectively remove them from a home. Homeowners should be vigilant in identifying signs of a rat infestation, such as droppings, gnaw marks, and noises at night, and take steps to prevent rat infestations by sealing up entry points and removing food sources.