Listening to whales – even when they make no sound | EurekAlert!
A 100-year-old equation and a fibre-optic cable off the coast of Svalbard led researchers to discover they could detect swimming whales — even if they were completely silent. The discovery broadens the tools that biologists could someday use to detect and monitor these marine giants.
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underwater cables: Tiny fiber-optic cables on seabed can do a lot more than you can imagine. Now, they can listen to silent whales. Here's how - The Economic Times