Did you know that there are animals all around you that you can't see without a microscope?

Sometimes it's good you can't see them. As you shed dead skin cells, thousands of dust mites gobble them up.

Gross! Tiny water bears are super tough. They can survive in Earth's coldest and hottest places and even in space!

In this book, readers will learn amazing, weird and sometimes gross facts about a variety of microscopic creatures.