A concise text and realistic watercolor illustrations combine to show a day in the life of the Australian mammal that has fascinated scientists for generations. The platypus shares qualities with a duck (bill and webbed feet), a beaver (tail), a reptile (its walk), a bird (lays eggs), a snake (venomous), and a mammal (produces milk). This reclusive animal is seldom seen in the wild so this thorough account of its typical behaviors is most welcome. Additional facts in a slightly smaller typeface appear on every page. (Ages 6–9)