If surveying snails in the wild, carry out a full risk assessment for outdoor work, and observe appropriate hygiene precautions after handling snails. See more

Teachers should be careful to introduce the snails in a way that promotes a good ethical attitude towards them and not a simply instrumental one. Although they are simple organisms which may not 'suffer' in the same way … See more

Investigation aThink about the data about shell colour collected in different months at a particular thrush’s anvil in a wood near Oxford. bStudy the graph of percentages of yellow snails and of snails with one or more band, base… See more

Thrushes smash snails on particular stones (called ‘anvils’) to break open the shell and free the soft body of the snail to eat. Collecting snail shells from a thrush’s anvil makes it possible to find out the proportion of the differ… See more