Sperm whale communications are extremely diverse. Their clicks can be as short as 1/1000 of a second, and their range goes all the way up to their ‘gunshot’, one of the most powerful sounds on the planet – as loud as 230 decibels. To put this into perspective, a jet taking off registers at around 150 decibels from 25 metres, enough to rupture an eardrum. Scientists claim that anything between 180-200 is enough to kill. These powerful sounds enable whales to communicate over truly enormous distances – thousands of miles.