Secret World of Sound with David Attenborough

From earthworms to elephants, animals across the world harness the power of sound to help them hunt, survive and escape from predators.

Shrieking elks, humming fish, singing gibbons, and lyrebirds mimicking their surroundings all use their voices to find and attract a mate.

As baby animals take their first steps out of the nest, burrow, den or lair, the sounds that guide them could mean the difference between life and death.