Marine Biology

A study led by Aarhus University finds male sperm whales' slow clicks exceed 200 dB and can carry up to 70 kilometers, the loudest mammalian communication signal recorded.

Researchers documented the elusive goblin shark alive in its natural deep-sea habitat for the first time, extending its known range and depth by nearly 700 meters.

Sea ice loss has triggered irreversible nitrate depletion in the Arctic Ocean since 2009, undermining the plankton foundation of the polar food web.

Researchers identify 24 amphipod species, a new family, and a new superfamily in a region targeted for deep-sea mining.

A 36-day voyage aboard CSIRO's RV Investigator surveyed 61 deep-water sites in Australia's Coral Sea Marine Park, collecting over 6,000 fishes and 80,000 invertebrates and identifying more than 120 species new to science at depths reaching 3,600 meters.