Life cycles

Simple text and color photographs explain the life cycle of a dog, describing how it is born a puppy and grows to become an adult canine.

Examines the life cycle of bees, including how they are born, their life stages, and how they care for their eggs and larvae.

Did you know that adult salmon come back to the river where they were born to reproduce? Scientists have found that some salmon travel nearly 2,000 miles (3,219 kilometers) to their destination. Discover more fascinating facts in Fish, a Life Cycles book.

Take a close look at the science behind the life cycles of mammals.

Text and photographs present a brief description of the life cycle of chickens.