As you take in a beautiful view of the ocean, do you think of sound? There is a lot of it beneath the waves! Natural sounds are generated by wind, rain, waves, earthquakes as well as whales and ...

Of the roughly 250,000 known marine species, scientists think all ~126 marine mammals emit sounds – the ‘thwop’, ‘muah’, and ‘boop’s of a humpback whale, for example, or the boing of a minke whale.

Chris Kehrer, science program manager at Port Royal Sound Foundation in South Carolina, recently answered a question I have wondered about since childhood. Why does the Atlantic croaker, a marine fish ...