To answer Peter Rabbit's questions about his relatives, Old Mother Nature holds a school for the animals every day at sun-up for a month. Encouraging the animals to notice the differences between them and to offer their observations of animal behavior, Old Mother Nature helps them all gain a greater understanding of the mammals of North America. Starting with the animals close to home, the school moves in ever-widening circles to encompass the animals of the far west and the extreme north, as well. A fine introduction to mammals for students in the primary grades.

为了回答彼得兔关于他的亲戚的问题，自然之母在一个月内每天太阳升起的时候为动物们举办一个学校。自然之母鼓励动物们注意他们之间的差异，并提供他们对动物行为的观察，帮助他们对北美的哺乳动物有了更多的了解。从离家很近的动物开始，学校以不断扩大的圈子，把遥远的西部和极北地区的动物也包括在内。对小学阶段的学生来说，这是一本介绍哺乳动物的好书。