Penguins must complete their life cycle in very cold temperatures. To protect their eggs from the cold, penguins use brood patches. Students will watch a penguin chick hatch from an egg and grow into an adult.
A female butterfly lays eggs on a leaf to begin the butterfly life cycle. The eggs hatch into caterpillars, and caterpillars form chrysalises to change into butterflies. Students will follow a butterfly as it grows from an egg into an adult.
Bees begin their life cycle as eggs in honeycomb cells. Every day, a queen bee can lay as many as 2,000 eggs. Young readers will study a bee's growth from egg to grub to pupa to adult.
Adult salmon spawn at the end of their life cycle. They fight strong currents while swimming upriver to the place where they hatched. Young readers will follow a salmon from egg to adult.
Ladybugs spend part of their life cycle as larva. Every day a ladybug larva eats about 30 tiny green insects called aphids. Young children will watch a ladybug go from egg to adult.
The life cycle of a frog takes place in water and on land. It begins in spring with a male frog croaking a song to attract a female. Young readers will read about and watch an egg develop into a tadpole and then into an adult frog.
Dogs begin their life cycle as puppies in a litter. A newborn puppy sleeps for 20 hours a day as it grows! Children will watch a puppy move from a large litter to a loving home as it grows up.
Roosters attract hens by strutting around and showing off their brilliant feathers. This book introduces children to the cycle of a chicken's life, explaining how a chick hatches from an egg and develops into an adult.
A turtle sensing danger will pull its head, legs, and tail inside of its shell. This book teaches children about the life cycle of a turtle. Young readers will learn how turtles hatch from eggs, avoid predators, and live a very long time!
Weighing around 1,300 pounds, an adult dairy cow produces about 90 glasses of milk every day! Young readers will learn the different stages of a cow's life cycle, watching as calves grow into heifers and then adult cows.
A kitten is completely dependent on its mother during the first eight weeks of its life. Its mother provides food, warmth, and protection. Children will follow a kitten's growth into an adult cat in this book.
Male sea horses have a unique role in the sea horse life cycle. They carry the eggs and give birth to as many as 200 babies at one time. Young children can track a sea horse's life cycle from egg to fry to adult.