life cycles

Text and photographs depict the life cycle of the Atlantic salmon, from its birth in freshwater streams through its journey to the sea to its return to spawn in its streams of origin.

Features information on the life cycle of a bat focusing on its physical characteristics, behaviors, flight, habitat, offspring, and threats to the life of a bat.

Baby Squirrel and all his woodland friends get a lesson from Mama Squirrel on how tiny acorns grow into large oak trees.

Provides an introduction to beavers and where they live, explains what a life cycle is, follows the birth, growth, and adulthood of a beaver, and discusses interactions between people and the animals.

Traces the life cycle of a sea horse from embryo to adult, and includes information about sea horse anatomy, movement, eating, and threats to their survival.

Text and photographs describe basic facts about trees, their function in a forest, and how they benefit animals, people, and the environment.

A step-by-step look at an elephant's growth from calf to adult, which explains how calves learn to walk, bathe, and feed themselves and includes color photos.

A basic overview of the life cycle of a frog.

A basic overview of the life cycle of an oak tree.

A basic overview of the life cycle of a duck and the behavior of ducklings as they grow.