There are 436 species of shrew. They are found all over the world, except for the polar regions and Australia, New Guinea, and New Zealand.

Most species of shrew are very small and look like mice. Shrews have feet with five claws, long pointed snouts, and small eyes.

Shrews have a high rate of metabolism and have to eat frequently. They eat seeds, worms, insects, grubs, and other invertebrates.

Some species of shrew are venomous. One of the smallest mammals, the pygmy shrew, is in this family. The pygmy shrew is about 3 inches long and is found in the northern North America and parts of the Appalachian Mountains.