Slugs are from the Gastropod family and is the general name given for those that do not have a shell. There is approximately 40 different slug species in the UK and they are a variety of colours. They move around on one slimy muscular foot in a wave motion, with the slime they produce aiding their movement over a variety of surfaces. Slugs will have two pair of tentacles on their head - essentially one pair for seeling / smelling, and the second pair for feeling and tasting. Slugs are able to retract their head back into the body for protection when under threat or if they are stationary as they are often a food source for other wildlife.
Slugs are most active when the conditions are moist and cool. They are also much easier to spot at night, if you go outside with a torch when it is dark you will stand a much better chance of picking them off. In the day time you can look for the shiny, slimy trails that they leave behind.
