Researchers continue to discover new and terrifying marine species, proving that much of the ocean remains a mystery. In 2015, scientists searching for larval lobsters stumbled upon an extinct volcanic range teeming with frightening fish species, including scaleless blackfish, chauliodontidae, and eel-like Idiacanthidae. These discoveries challenge previous assumptions about the existence of juvenile fish. The ancient volcanic range, located off the coast of Sydney, has provided a nursery ground for these creatures, raising questions about our knowledge of the ocean floor. The RV Investigator, an Australian research vessel, played a crucial role in these findings, highlighting the importance of ongoing marine exploration.