(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 Souvenir Guide

Natural History Museum Souvenir Guide

Discover the amazing world of nature with our vibrant new Souvenir Guide. This fascinating exploration of the natural world is designed to reflect the power and diversity of nature through its absorbing text and stunning images.

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