Discusses different animals in terms of their life spans, from the mayfly that live for one day, to the giant clam that lives for eighty years or more.
Discusses different animals in terms of their size, from the blue whale, which can grow to over 100 feet long, to the bee hummingbird, which weighs as much as three peanuts.
Discusses different animals in terms of their weight, form the super-heavyweight, forty-four ton whale shark, to the gecko lizard that weighs a fraction of an ounce.
Contrasts the behavior of a variety of animals, some of which are sleepy and some of which are busy, including the mouse lemur, water shrew, and pine marten.