The biggest difference between rats and mice is in their size. Mice are typically between 1 and 7 inches in length and are quite petite, sometimes weighing in at less than 1 ounce. The rat is a ...

Understanding these differences can be crucial for effective ... have less specific habitat preferences. Distinguishing between rat and mouse droppings can help with identification.

With millions of mice and rats in US labs alone, scientists can learn a lot of information from their scurrying test subjects ...