What is echolocation? How does a raccoon find its prey in the dark? Why do fireflies flash at night? Night Movers examines why some animals are more active at night. Some animals would simply dry out if they were active during the day. Others find that nighttime is a chance to feed in safety or avoid competition for food. In the cooler, calmer night air, migrating birds can fly further, and the scents of flowers are stronger. Many animals' senses have adapted to make the most of night-time living.