Mouse vs. Rat: Key Differences One of the primary differences between mice and rats is their size. Rats weigh more, are longer and have thicker tails than mice.

Rats and mice are both rodents, but how can you tell the difference? Learn about their size, their range, and notable characteristics.

Rats vs. mice—both are unwanted pests. Here’s how to tell the difference between rats and mice, according to the experts.

Mouse vs. Rat Behavior One of the most important differences in behavior between mice and rats is that mice are curious and rats are cautious.