Life cycles

Describes different stages in the life of a butterfly as it changes from egg to caterpillar, caterpillar to chrysalis, and chrysalis to adult butterfly.

Photographs and text trace the life cycle of the green snake, from egg, to hatchling, to molting, to adulthood.

Describes the habitat, eating habits, and life cycle of the barn swallow.

Traces the life cycle of a sea horse from the egg stage through adulthood.

Traces the life cycle of a salmon from the egg stage through adulthood.

Describes the physical characteristics, habits, and stages of development of rabbits.

Describes the physical characteristics, habits, and stages of development of penguins.

An introduction to the physical characteristics, behavior, and birth and development of kangaroos, marsupials that live in Australia.

An introduction to the physical characteristics, behavior, and development of crocodiles, reptiles that are in danger from both animal and human predators.

An introduction to the physical characteristics, behavior, and life cycle of the insect that changes from an egg to a caterpillar to a butterfly.