Another way of hearing, these iceberg songs are so-called hydrophones in the water column. They are installed, for example, in the Southern Ocean or in the Indian Ocean to monitor any kind of sounds.

Iceberg songs are generated by harmonic tremours that occur when icebergs rub against each other or scrape along the seafloor (Credit: Getty Images) ...

Whale songs . A colony of penguins walks on a giant ice block, shaped like a slide. Very close, the group of researchers observes a humpback whale that comes up for air on the surface, before winter ...

Variation over longer timeframes, however, is much more mixed. One study in the South Atlantic, for example, found that as total iceberg volume decreased between 2004 and 2012, so did the low ...

The harmonic songs of Antarctic icebergs are particularly difficult to associate with individual events, says Schlindwein. When the strange wailing they produce was first detected in 2002 in ...