Printouts Shrews are very small and very aggressive mammals. These tiny animals live in almost every type of habitat. There are about 200 species of shrews that inhabit Africa, Asia, Europe, North America and northern South America.
Shrews are good burrowers and swimmers.
The North American Pygmy Shrew may be the smallest mammal in the world. It weighs just 1.2-2.7 grams. Its body is about the size of a person's thumbnail. Shrews have short, dense fur, clawed feet, a long snout, sharp teeth, and big ears. These ferocious mammals will attack and kill animals that are bigger than they are.