Mouse droppings are black and can be mistaken for those of rats or cockroaches. Both types of rodents can produce a large number of droppings daily—40 to 100 for mice and 20 to 50 for rats.

Louisville's health department said an inspector found mice droppings, some "chewed-through product" and a live mouse in ...

Owls have a name for a white mouse on a black rock: "dinner." Scientific studies (not to mention simple logic) have shown that mice whose coloration doesn't match their surroundings are easier ...