Domestic and Fancy Rat

What is a Siamese rat and other interesting facts about Domestic Rats / Fancy Rats


Siamese rats have a beige base color and darker shading on their nose, ears, tail and base of tail, and on their feet. (Like siamese in other species)

Rats are one of the smartest of over 1700 rodents and have been kept as pets for hundreds of years. They have long bodies, long tails with little or no hair, long pointed noses and are larger than mice. They have poor eyesight but have excellent hearing and a strong sense of smell.

Even though many consider rats dirty animals, they are actually very clean and groom themselves constantly. They are cautious of new things, very intelligent and learn from experience. With enough social interaction rats can share a bond with their owner and make great pets.  This information was taken from

Every summer at Cub Creek Science Camp we have Rats for campers to enjoy.  They come in many different colors.  Domestic Rats love the attention and are fun to hold and entertaining to watch as they scamper around in their home playing with their toys, some of which the campers have made as the enrichment part of their Adopt an Animal Course here at Science Camp.


More information on the Domestic Rats


Young Rats vs. Adult Mice

Young, weaned rats are still larger than adult mice, weighing around 100 grams at six weeks. However, to the casual observer, very young rats and adult mice can be difficult to tell apart.

Here's what to look for: baby rats will have more juvenile proportions than adult rodents. Their heads and feet will be large relative to their bodies, their faces will be stubby and blunt with wide noses. Adult mice, on the other hand, will have adult proportions: a small, triangular head with a small nose and little delicate feet as compared to the body. In addition, mouse ears are very large relative to their heads, rat ears are smaller relative to their heads. Rats also have thicker tails than mice.

Feature Baby Rat Adult Mouse
Head short, stubby, broad, large relative to body small, triangular, small relative to body
Muzzle large and blunt with wide muzzle narrow with sharp muzzle
Ears ears are small relative to the head ears are large relative to the head
Tail thick thin
Tail/body ratio Tail shorter than body Tail same length/longer than body
Feet Large relative to body, especially the hind feet Small relative to body
Weight around 100 grams at 6 weeks, 200 grams at 8 weeks 30-50 grams

6 week old rat

Adult mouse

Rats vs Mice was taken from

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