In 1997, researchers detected an unusual underwater acoustic signal later nicknamed the Bloop.
Scientific investigation eventually provided a more plausible explanation.
Ocean water transmits sound efficiently under https://www.walkscore.com/people/267908163972/76j-seguran%C3%A7a-entretenimento-e-inova%C3%A7%C3%A3o-em-um-s%C3%B3-lugar