(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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Sensational Butterflies toys and games

Earth Clock

Earth Clock

Build your own earth clock with this amazing product created in conjunction with Middlesex University.

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Earth Clock

£ 15.0

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Channel all the power of the earth to create an educational, fascinating and fun experiment.
All you need is some damp mud and a pair of scissors and time is in your hands.

No batteries required, only earth.

Should be used under adult supervision, not suitable for ages 3 and under.

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With your help we can continue to carry out pioneering research, care for our internationally important collections and inspire people to take better care of the natural world.

Product information

For ages: 7+

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