These colourful little fish are a delight for snorkellers or shallow water divers to photograph, rarely being scared off by their presence!

This shiny beetle is common in wooded areas throughout the UK. As the name suggests, it specialises in hunting snails.

Famed for its tapping in the middle of the night, supposedly heralding tragedy, the deathwatch beetle is a serious wood-boring pest. In houses, their tunnelling can cause major damage.