Mysterious Sounds In The Planet’s Oceans: ‘Duck Noise’ ID’d

News from the fascinating world of sound and frequency.

The Blog of Mystica

…  But  Other Sound Mysteries Remain

What was that? For decades, mysterious sounds have been recorded from the ocean that have absolutely stumped scientists.

While some remain a mystery, this week, researchers determined that an odd noise known as the “bio-duck” was emitted by an Antarctic minke whale.

Denise Risch of Integrated Statistics and her colleagues explain in the journal Biology Letters that the Donald Duck-type sound is produced by Antarctic minke whales, which they tagged and recorded at Wilhelmina Bay, off the western Antarctic Peninsula.

“For decades, the bio-duck sound has been recorded in the Southern Ocean, but the animal producing it has remained a mystery,” said Risch.

The bio-duck sound is often picked up by hydrophones positioned under the ice of Antarctica.

Listen here.

(Source: Discovery)

Mysterious sounds in the ocean

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