Rats are generally larger than mice. Rats have disproportionately long feet and oversized heads when compared to mice. A rat’s nose is round, while mice have a triangular shaped nose.
Norway rats are larger than most other rat species.
Norway Rats are 13”- 18” in length including a 6” – 8 ½“ tail
Weigh approximately ¾ pound (12 ounces)
An adult Norway rat is typically dark grey-brown with occasional black hairs.
The ears and tail are hairless.
Norway rat tails are shorter than their body length
Their ears and eyes look relatively small to their body size.