"Then they are perfectly wrong," said Nadine. "The instincts Nature implants in animals are almost invariably incorrect. For instance, the Siberian tigers at the Zoo. For several years they never grew winter coats, and all the naturalists went down on their knees and said: 'O wonderful Mother Nature! their instincts tell them this is a milder climate than Siberia.' But this winter, the mildest ever known, the poor things have grown the thickest winter coats ever seen. So all the naturalists had to get up again, and dust their trousers where they had knelt down."

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