Examines the process by which the human body is able to repair and renew itself through cellular regeneration, looking at how the body recovers from broken bones, wounds, and other, sometimes severe, injuries.
Randall McCoy declares to his parents that he is a big boy and no longer needs his stuffed pig, but creeps downstairs later and finds a robber taking Mr. Pigglesworth, which sets off a wild chase through the night to stop the thief.
Young Tad feels sad and awkward when he begins losing his tail and sprouts legs, but the older frogs reassure him, and an encounter with a snake helps him see things in a new light.
Lola is convinced that she is finally tall enough to ride the "Super Dooper Loop the Looper" at the fair, but her older brother Charlie gently tells her that she is still too short, but that there are many good things about being small.
Combining photographs and artwork, this book introduces human growth and the cycle of life and explains human development in the womb and the growth of humans from birth to old age.
Small for his age, Wallace always wears a fireman's hat so he won't be lost in a crowd, but when his legs start growing out of proportion to his body, his mother is told by old Nanny Heppleweather that the hat must come off.