Chris Packham with a tortoise
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Tortoise opens new science lab

19 April 2015 Last updated at 12:18 BST

A tortoise has officially opened a science laboratory at the University of Lincoln.

The creature, nicknamed after famous scientist Charles Darwin, munched through a ribbon made of salad.

Charles was joined by documentary presenter Chris Packham.

Chris said the university had shown "ambition" by getting a tortoise to officially open the new building.