Sounds & Noises
The ocean can be a noisy place: Waves and sea surface turbulence, earthquakes and volcanic action, grinding polar ice, lightening strikes and tidal action create a background din over which sea animals need to hear. But since the first eukaryotes of 3+ Billion years ago, sea life has been adapting to the ocean’s acoustic environment.
It has only been in the last 100 years, with the mechanization of travel, and the development of military and industrial marine technologies that animals have had to adapt – or endure the din of these new sounds.
The Audiograms in these sound examples were produced by "Raven" software, created by the Cornell Lab of Ornithology Bioacoustics Lab under the direction of Christopher Clark, Kurt Fristrup and Tim Krein