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Eatures newsletter called The Essential List  a handpicked selection of stories from BBC Future Culture Worklife Travel and Reel delivered to your inbox every Friday. Continue reading  FUTURE PLANET  OCEANS The people eavesdropping on the ocean Share using Email Share on Twitter Share on Facebook Share on Linkedin Image credit Dava Watson Researcher Annie InnesGold deploys a hydrophone used to listen in on ocean sounds Credit.

Dava Watson By Katherine Latham th August  Scientists have long listened to the ocean but new technology is helping to piece together a far more complex picture of life beneath the waves. Here BBC Future Mobile App Development Service lets you listen in. B Beneath the surface a ruckus fills the ocean. Clicks grunts and barks of countless species make up the marine soundscape  a chorus to which humans are often oblivious. Below you can hear some of these for yourself via sound recordings researchers have made of ocean life.



Sound is essential to many marine animals and one of the main tools they use to survive in the ocean. Light reaches just a few hundred feet below the surface of the water but sound can travel much farther and faster in water than it does in the air.  lowfrequency ones like those made by whales can cover vast distances  travelling for thousands of kilometres across entire ocean basins.