Dusk till dawn: The secret world of night creatures
As you fall asleep each night, creatures around you are moving around under the cover of darkness. You can spot signs of their activities when you wake. A fox may have tipped over the rubbish, or you might spot some hedgehog footprints. But evidence of other creatures can be harder to find. Some, such as moths and bats, will leave hardly any trace at all.
Source: nhm.ac.uk
