What is the Difference Between a Rat and a Mouse

What is the Difference Between a Rat and a Mouse?


What is the Difference Between a Rat and a Mouse?

What is the Difference Between a Rat and a Mouse
a Rat and a Mouse

There are just 3 species of rat and mouse which might be through a long way the most ordinary and crucial pests in homes and companies international due to their capability to evolve to the human environment.

Those are the brown rat (rattus norvegicus, additionally called the common or norway rat), deliver rat (rattus rattus, additionally known as the black rat or roof rat) and house mouse (mus domesticus).

The residence mouse has numerous subspecies which are common in distinctive components of the arena and are increasingly being recognised as separate species, but those are all simply indistinguishable from each different.

All rodents have the commonplace figuring out function of a pair of incisor enamel in the top jaw. They have a tendency to have quick legs and a protracted tail, but a closer observe their frame characteristics and conduct shows that there are without difficulty distinguishable capabilities that you can use to perceive which pest is invading your home.

What do mice look like?

The easiest distinguishing characteristic is the small size of the residence mouse at 3-10 cm long.
But, a mouse may be pressured with a younger rat.
A mature mouse may be distinguished from a younger rat by means of its larger ears and longer tail in comparison to its frame duration than the rat.
A young rat additionally has quite larger toes and head as compared to the body than a mouse.
Mice are normally light gray or brown in color with a lighter colour on their bellies.

What do rats appear like?

The brown rat is larger than the deliver rat and that they have the subsequent differing body functions:

Brown rat:

  • Thicker body;
  • Tail shorter than period of head + body;
  • Paler shade under the tail;
  • Small furry ears;
  • Blunt nose.

Black rat:

  • Slender body;
  • Huge thin ears;
  • Pointed nose;
  • Tail longer than head +body.

Rat and mice ingesting behavior

Each rats and mice are omnivorous but the brown rat and residence mouse decide upon cereals, at the same time as black rats decide upon fruit and ingredients with a high moisture content.

Brown rats:

  • Prefers cereals;
  • Cuts grain when eating, giving the appearance that is has been chopped;
  • Tends to are searching for meals in the same locations, making baiting less complicated;
  • Beverages approximately 60ml water an afternoon;

Black rats:

  • Prefers moist fruit;
  • Cuts grain while consuming, giving the appearance this is has been chopped;
  • Has a tendency not to eat at the equal area on consecutive nights. This makes them more tough to govern, requiring many small baiting factors the use of wet meals, which best remains edible for some days earlier than desiring replacing.
  • Liquids about 30ml water a day.


  • Prefers cereals;
  • When eating it ‘kibbles’ the grain by using eliminating the outer husk to eat the white endosperm internal;
  • Has a tendency to are seeking food within the same locations;
  • Doesn’t need to drink water but will drink about 3ml if to be had.

Wherein do rats and mice live?

Brown rats normally live at the floor and burrows. They may be generally noticed during buildings, in sewer structures and exterior. Their burrowing can cause substantial harm to sewers. The brown rat has a tendency to stroll on the pads of the toes and the surfaces that it travels alongside display non-stop smudges from the oily fur.

Wherein do black rats stay?

Black rats are specially confined to homes round ports and in ships in temperate countries (consequently the name ‘ship rat’). They are agile and an excellent climbers, nesting excessive up under roofs. In hotter nations, where they originate, black rats will nest in trees, especially in forest and orchards. Black rats tend to stroll on their toes and the surfaces that the deliver rat travels alongside display separated smudges.


Wherein do mice stay?

Mice typically lives at the ground and nests in burrows, but is agile and might climb. In heavy infestations, grease from the body mixed with dust and urine can construct into small pillars. Those can stay for a long time, so might not indicate a current infestation. A mouse obviously has a smaller footprint than a rat.


The droppings of the three animals range in size and shape, consistent with the body length. Rat droppings can regularly been mistaken for mouse droppings and people from a cockroach.

Brown rat droppings

Brown rat droppings are wide and are darkish brown shade. They’re normally observed in a tapered, spindle shape – equivalent to a large grain of rice.

Black rat droppings

Black rat droppings are lengthy and thin, and are smaller than brown rat droppings. Black rat droppings are greater normal in form with a banana like curve and pointed ends.

Mouse droppings

Mouse droppings are approximately 3-8mm in period, and are regularly found scattered randomly during a infestation. Mouse droppings are granular in shape and black in color and may be determined near nesting areas.


Mice attain sexual maturity earlier and produce large litters at a extra common price than rats. The brand new borne of all 3 rodents are blind, hairless and completely dependent on the mother for feeding and protection.

Residence mouse

  • Litter length: four-sixteen
  • Variety of litters in step with 12 months: 7-8
  • Maturity: 8-12 weeks

Brown rat

  • Litter size: 7-8
  • Wide variety of litters according to 12 months: 3-6
  • Time to maturity: 10-12 weeks

Black rat

  • Muddle length: 5-10
  • Quantity of litters in line with 12 months: 3-6
  • Time to maturity: 7-eight weeks