common earthworm
Earthworm Society of Britain (ESB)
Discover more about the amazing world of earthworms

Joining the Earthworm Society of Britain (ESB) is a great way to learn more about the earthworm world.
We want to increase knowledge and understanding of earthworms, especially in Britain, and to highlight the important work they do in soils.
The fascinating world of earthworms
Did you know we have at least 26 species of earthworm in the UK?
Just in your garden you are likely to find up to eight different species. Earthworms can be grey, red, green or stripy. Some can produce bright yellow defensive fluids and all make little cocoons in the soil from which baby worms hatch.
'Earthworms are an incredibly important aspect of soil health, as by churning it up they improve its fertility - which is great news for plants, animals and ultimately us'
Nick Baker, TV presenter and patron of the ESB
Famous words
The Greek philosopher Aristotle realised the importance of earthworms, calling them 'the intestines of the earth'.
Charles Darwin was also fascinated by earthworms. He said, 'It may be doubted whether there are many other animals which have played so important a part in the history of the world as have these lowly organised creatures’
The benefits of joining the ESB

As a member of the ESB you'll have the opportunity to go on earthworm identification courses and take part in valuable research studies. You'll also receive a regular newsletter and invitations to exclusive events.
Join today by completing the application form below. For more information contact Emma Sherlock, e [dot] sherlock [at] nhm [dot] ac [dot] uk.
'The Earthworm Society of Britain is a great way for anyone with an interest in worms to learn more about these fascinating creatures'
John Craven, TV presenter and patron of the ESB
Join in the earthworm survey

Look for earthworms near you and help scientists with valuable research.
Play earthworm frenzy
You'll need fast reactions to catch as many worms as you can in the time limit.
See your earthworm pictures

See all the earthworm pictures you've submitted to us so far. Get snapping and add your photos to the gallery.
Take part in an OPAL event near you

From pond-dipping and bat walks to training courses and surveys, find out about local activities and events.
Lob worm (Lumbricus terrestris)
Britain's largest earthworm, also known as the common earthworm.
Distribution
Very common and widespread. Can reach populations of 20 to 40 worms per square metre in an average garden lawn
Habitat
Live in deep vertical burrows, which can be up to 3m deep. They can anchor themselves by broadening their tail to grip the sides of the burrow.
Diet
Emerge at night to feed on fallen leaves and other decaying plant material
Size
Typical adult size about 12cm in length when not moving
Characteristics
- Long but very stout, often as thick as a pencil
- Upper surface of body, from first segment to saddle, is dark in colour
- Male pores are raised and conspicuous (see earthworm key for image)
- Sometimes flattens its tail into a wide paddle shape (see earthworm key for image)