Because of their similar body shapes, furry coats, and scurrying movements, several animals are often mistaken for rats. These can be grouped into local backyard critters, aquatic wildlife, and other small household rodents.
A wide variety of animals look like rats but belong to completely different species or even different biological families. Some are other types of rodents, while others are marsupials or insectivores.
Rodents mistaken for rats
Possums and rats are entirely different animals. While both are nocturnal scavengers, possums are marsupials (native to the Americas), whereas rats are placental rodents.
House Mouse
House mice (Mus musculus) are brown to black with a lighter, but not white, underbelly. They are smaller than rats (2 to 3.5 inch long body with 3 to 4 inch long tail) but similar in appearance. Young rats are sometimes mistaken for mice. House mice are seen both indoors and in agricultural areas.
Colour & Features: Mice are typically light grey or brown with lighter bellies. Brown rats have thicker bodies, small hairy ears, and blunt noses, with a tail shorter than their head and body combined. Black rats are more slender, with large thin ears, pointed noses, and a tail longer than their head and body.
Yes, it is possible for rats to come near or even crawl on your bed while you sleep. However, because rats are naturally cautious and afraid of humans, this usually only happens if your home has a severe infestation, or if specific factors are drawing them to your sleeping area.
Possums are much larger, often weighing between 1.5 to 4.5 kg. The common brushtail possum, for example, can grow up to 55 cm in body length, plus a long bushy tail. They have thick fur, big eyes, and prominent ears. Rats are significantly smaller, usually around 100 to 300 grams in weight.
Look for signs of rat or mouse infestation:
Several large rodents and marsupials are commonly mistaken for oversized rats. The most likely culprits include:
Mice are unlikely to climb on you when you sleep unless they are already in the bedroom. The best way to keep them out is by not giving them a reason to stay.
Mice are easily scared away at night using strong sensory deterrents like overpowering scents (peppermint, cloves, pine, or vinegar), high-frequency ultrasonic sounds, or bright, flashing strobe lights in dark areas like attics or basements.
Because of their similar body shapes, furry coats, and scurrying movements, several animals are often mistaken for rats. These can be grouped into local backyard critters, aquatic wildlife, and other small household rodents.
The Amish control mice through non-chemical, self-sustaining methods, relying on active trapping, natural scent repellents, and structural exclusion. Rather than using commercial poisons, they focus on physical barriers and natural predators to keep rodent populations in check.
Pet rats, often called "fancy rats," typically look like small, slender rodents with pointed muzzles, long tapering tails, and prominent whiskers. They generally measure 9 to 11 inches long (not including the tail) and boast a wide variety of coat colors, fur textures, and ear shapes.
Possums and rats are entirely different animals. While both are nocturnal scavengers, possums are marsupials (native to the Americas), whereas rats are placental rodents.
Peppermint and Eucalyptus Oils
These oils emit strong, fresh scents that rats find intolerable. To use, soak cotton balls in the oil and place them in areas prone to rat activity, such as cupboards, basements, near entry points, and other areas where you may suspect a rat's nest.
Rats are nocturnal and avoid people. Seeing one in daylight suggests the population is so large or food is so scarce that they are forced to search for food during the day.
So the rat and mouse population is at it's highest by late Summer/early Autumn. As autumn progresses the food sources start to dry up and the vegetation dies back. Rats and mice will feel the cold and will now start to seek cover, alternative food and warmth. This is when they move into buildings.
To lure a rat out of hiding, use highly fragrant foods—like peanut butter, bacon grease, or chocolate—and create a sense of security. Rats are naturally suspicious of new objects; place unset traps with "free meals" for a few days before setting them to condition the rat into feeling safe.
The only way to get rid of rats permanently is through a combination of exclusion (rat-proofing) and elimination of attractants. Traps and poisons will only kill the current population, but removing their food, water, and entry points ensures they never return.
Nutria. Alternatively known as the coypu, the nutria is an herbivorous, burrow-dwelling semi-aquatic rodent native to South America. Resembling a giant rat, the typical nutria grows anywhere from 28 to 42 inches in length. Adults weigh as much as 37 pounds.
Rats are strictly nocturnal, so they are naturally active when the sun goes down. Sharp screams, screeches, or shrieks at night are typically caused by pain, extreme fear, or aggressive territorial disputes.
No, a muskrat is not a true rat. While both are rodents, muskrats are semi-aquatic and are actually more closely related to voles and lemmings than to common rats.