Yea, rats are huge with a longer, thicker and scarier tails. Mice are the lil ones. They can grow to be big, but never as big as a rat. I know the difference, unfortunately, because I was really poor in 2001. So I had both mice and rats in the house. My uncle used to catch the rats wit bare hands and kill them.

Yea it always scares me when someone says they have rats in their house. There is a huge difference between a mouse and a rat.