The silly true story of how Darwin discovered that the earthworm is one of the most important species on the planet. Without their life-sustaining poop, there would be no plants or animals on Earth. A scholarly worm gives historical facts and context on every page

A worm and a caterpillar are best friends. When one of them is about to go through a big change, they both learn what is inside is what counts.

This book for kids aged 8 and above takes an innovative look at the circle of life including animals, dinosaurs, stars, volcanoes, and even YOU. Everything has a beginning and an end, but what happens in between? Each spread focuses on at least one life cycle. Meet dolphins jumping in the ocean waves, penguins travelling on the ice, and butterflies fluttering in the sky. Shoot back in time 4.5 billion years to see how planet Earth was formed and then...

"What are the tallest living things on Earth? Trees! Discover what growing trees need so they can rise to the sky in this lyrical look at the tree life cycle"

Looks at the life cycle of pond frogs and tree frogs, following their metamorphosis from tadpoles to adult amphibian.

"An educational picture book about the life cycle of a sunflower"--

From egg to hungry caterpillar, to beautiful, fluttery butterfly, this book with flaps follows the complete life cycle of a butterfly. Readers are sure to love finding out about each life cycle stage, as they follow the fascinating pictures and listen to the fun and friendly text. Full color.

Seeds follows the journey and growth of a dandelion. The warm, inviting illustrations and rhythmic text will soothe and focus the attention of young children.

"In this nonfiction story, young readers explore the transformation of an egg into a chick. The miracles of nature come to life in this early-learning series centered around life cycles, featuring simple text and Eric Carle's classic illustrations!"--