Uploaded November 2013 | Updated September 2026, 1 hour ago

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Hazel dormouse in quarantine gets health check at ZSL London Zoo's veterinary unit before being released into the wild by People's Trust for Endangered Species (PTES).

PTES co-ordinates Hazel Dormouse (Muscardinus avellanarius) reintroductions at woodlands around England. This wildlife conservation project aims to return the rare hazel dormouse to parts of the British countryside from which it has been lost or where their numbers are worryingly low.

For further information visit ptes.org/dormice