The smallest mammal on Earth is the Etruscan shrew. It's about the size of a hummingbird and weighs only about 2 grams. That's about the same as a penny!
Etruscan shrews are found in southern Europe, North Africa, and Asia. They live in warm, moist environments, such as forests, grasslands, and gardens.
Etruscan shrews are nocturnal and they eat insects, spiders, and other small invertebrates. They have a very high metabolism, so they need to eat a lot of food to stay alive.
Etruscan shrews are also very fast and agile. They can run up to 18 miles per hour and they can climb trees and jump from branch to branch.
