Fiber-optic cables line the coasts of the continents and crisscross the oceans, carrying signals that are the backbone of communication in the modern world. While their main job is telecommunications, researchers have been exploring ways to use this giant network to eavesdrop on everything from storms to earthquakes to whales.
Click here for original story, Using two fiber-optic cables to track whales as they cruise the Arctic
Source: Phys.org