For nearly half a century, a mysterious sound has echoed through a remote stretch of the Pacific Ocean, eluding scientists and oceanographers alike. Rhythmic and persistent, this underwater signal ...

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SAN JOSE, Costa Rica (AP) — A Mexican marine biologist was seriously injured after he was attacked by a shark while working off Costa Rica’s Pacific coast and transferred to a hospital in the ...

A Mexican marine biologist was seriously injured after he was attacked by a shark while working off Costa Rica's Pacific coast and transferred to a hospital in the country's capital on Monday, ...

Mauricio Hoyos sustained serious injuries to his head, face and arms in the "extremely rare" incident Abigail Adams is a Human Interest Writer and Reporter for PEOPLE. She has been working in ...

A marine biologist was seriously injured after he was attacked by a shark while working off the coast of Costa Rica The man involved in the attack has been identified as 48-year-old Mauricio Hoyos, ...