Play Live Radio
Next Up:
0:00
0:00
Available On Air Stations
Health & Science

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

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.

Copyright 2021 NPR. To see more, visit https://www.npr.org.