Top 10 Earth’s smallest mammals 10. American shrew mole

9. Tasmanian pygmy possum

8. Paucident planigale

7. Narrow-nosed planigale

6. Long-tailed planigale

5. Baluchistan pygmy jerboa

4. African pygmy mouse

3. Kitti’s hog-nosed bat

2. Etruscan shrew

1. Batodonoides vanhouteni