As you walk into an anechoic chamber, you enter a strange new world: spiky, soft walls enclose every surface of the room. And when you look down, the floor is just a see-through mesh. Bouncing on the criss-crossed wires, the atmosphere seems to thicken around…

There is a whole world happening outside of what we can hear. Up in the night sky while we sleep, bats and moths face each other in a deadly battle every night. They encounter in an acoustic arena where the signals bats produce to hunt…