Peter Rabbit hopped up excitedly. “You said that the largest animals in the world live in the sea, and you haven't told us what they are,” he cried.
“True enough, Peter,” replied Old Mother Nature pleasantly. “The largest living animal is a Whale, a true mammal and not a fish at all, as some people appear to think. There are several kinds of Whales, some of them comparatively small and some the largest animals in the world, so large that I cannot give you any idea of how big they are. Beside one of these, the biggest Walrus would look like a baby. But the Whales do not belong just to this country, so I think we will not include them.
“Now we will close school. I hope you have enjoyed learning as much as I have enjoyed teaching, and I hope that what you have learned will be of use to you as long as you live. The more knowledge you possess the better fitted for your part in the work of the Great World you will be. Don't forget that, and never miss a chance to learn.”
And so ended Old Mother Nature's school in the Green Forest. One by one her little pupils thanked her for all she had taught them, and then started for home. Peter Rabbit was the last.
“I know ever and ever so much more than I did when I first came to you, but I guess that after all I know very little of all there is to know,” said he shyly, which shows that Peter really had learned a great deal. Then he started for the dear Old Briar-patch, lipperty-lipperty-lip.