What Spooked The Subs Of The '60s? Quacking Whales In the '60s, submarines picked up a mysterious quacking sound in the Southern Ocean. New research shows that the quack is coming from minke whales, but researchers still don't know why.
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What Spooked The Subs Of The '60s? Quacking Whales

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What Spooked The Subs Of The '60s? Quacking Whales

What Spooked The Subs Of The '60s? Quacking Whales

What Spooked The Subs Of The '60s? Quacking Whales

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  • <iframe src="https://www.npr.org/player/embed/306238520/306238521" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

In the '60s, submarines picked up a mysterious quacking sound in the Southern Ocean. This "bio-duck," as it came to be known, has been heard on and off ever since, but scientists haven't been able to trace it — until now. New research shows that the quack is coming from minke whales, but researchers still don't know why.