In 2009, Monterey Bay scientists used live underwater footage to expose a surprising secret of a deep-sea fish. 13 years later, their ROVs had logged 5,600 dives, helping reveal why the ocean's strangest creatures can look radically different after collection

Deep Pacific creatures exhibit unique survival strategies in perpetual darkness. Some animals produce their own light, while others possess transparent bodies. Live observations revealed barreleye fish's transparent head and rotating eyes. Preserved specimens often provide an incomplete and altered view of these animals. Thousands of dives continue to uncover the ocean's vast and mysterious undiscovered species.

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