Media playback is unsupported on your device

Spanish slugs: Public urged to report sightings

19 October 2013 Last updated at 11:34 BST

Scientists are asking people to report sightings of Spanish slugs, to see how much of a threat they are to Britain.

The Spanish slug is much larger, and more resistant to slug pellets than species native to the UK.

Tristan Maclean, a scientist from the John Innes Centre in Norwich, explains how they differ from ordinary slugs.

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.