Distinguishing between rat and mouse droppings can help with identification. Brown rat droppings are dark brown and tapered at the ends, while black rat droppings are curved. Mouse droppings are ...

Rats and mice might be spotted in the day depending on human activity but they can also be seen exploring at night.

A two-year-old male pet mouse (Fig. 1) and a two-year-old female pet rat (Fig. 2), both diagnosed previously with neoplasia, were presented by different owners. The mouse was kept in a group of ...

The US does not include within its animal welfare laws and regulations the rats, mice and birds who are subjected to research and testing. The federal Animal Welfare Act (AWA) was amended in 1970 to ...