Martha Kearney visits Cambridge to explore wildlife at night. She takes a trip on a punt to see and hear the creatures which come out after the tourists have gone to home bed. She learns about the bats that are just emerging from hibernation - hungry and on the hunt for insects. Martha also visits the city's Botanic Garden, where a long-running moth research project is in progress. She watches as a moth trap is set out in the evening, and then returns early the next morning as a team of volunteers checks which moths have turned up in the trap, before releasing them back into the wild
