(a species of owlet moth (Noctuid)) Some caterpillars, after they emerge from their egg, can increase their weight by 25,000 times.

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Natural History Museum books

The Great Naturalists

Great Naturalists

This book tells the story of the development of ideas about natural history as seen through the lives, observations and discoveries of nearly forty great naturalists, from Classical times to the end of the 19th century.

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