(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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Behind the scenes with Clare Valentine

Video presented by Clare Valentine

Behind the scenes at the Museum
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Ever wondered what it is like to spend a day working behind the scenes at the Natural History Museum? Two lucky students got to find out and saw the giant squid, the flesh-eating beetles and much more with Clare Valentine, Head of Zoology collections.

  • Presented by: Clare Valentine
  • Date: 09 March 2007
  • Duration: 5:26

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Cartoon image of a hatchet fish on a museum pass

In World War II the Museum was used as a secret base to develop new gadgets for allied spies, including an exploding rat!