ROV lights scanning under Antarctic sea ice during deep-sea survey.

Creatures From Below the Ice

Arthur reporting from the chilly blue, monocle unfogged.

ROV lights scanning under Antarctic sea ice during deep-sea survey.
Under-ice exploration with a remotely operated vehicle (ROV). Credit: Schmidt Ocean Institute / Ocean Census

Some seas hide their wonders behind great white curtains. This year, when scientists slipped cameras and samplers beneath Antarctic waters, they met a cast fit for a fantasy novel—only it’s all delightfully real. Crews working with Schmidt Ocean Institute and the Ocean Census project confirmed 30 species new to science from the Southern Ocean, including a small, spherical carnivorous sponge nicknamed the “death-ball.” Instead of quietly filtering water like polite sponges do, it bristles with tiny hooks to snare passing snacks. Nature, you marvelous rascal. Ocean Census

Sponge and coral garden revealed along the edge of a recently detached Antarctic iceberg.
Thriving gardens of sponges and corals along iceberg margins. Credit: Schmidt Ocean Institute

These finds came from volcanic calderas, deep trenches, and seabeds newly revealed after giant icebergs peeled away. When the ice lifts its veil, you don’t get emptiness—you get thriving gardens of sponges and corals, communities that may have waited centuries for a little sunlight and a curious robot to wander by. Schmidt Ocean Institute

How do scientists even know what’s down there? Three handy tricks:

  1. ROVs (remotely operated vehicles) glide like metal manta rays, filming in high definition and sampling gently. Scientific American
  2. Workshops and taxonomists verify specimens—slow, careful science that turns “weird thing” into a Latin name. Ocean Census
  3. eDNA (environmental DNA): water carries genetic breadcrumbs from nearby creatures; analyze the sample, and you read a neighborhood roll call without catching a single fish. PMC
Deep-sea specimens laid out for taxonomic identification after Antarctic expedition.
The slow art of naming: vouchers and microscopes, then Latin. Credit: Ocean Census
Researcher collecting a water sample for eDNA beneath Antarctic ice.
Reading the sea’s breadcrumbs with environmental DNA (eDNA). Credit: Research team / Ocean Census

Why this matters: oceans write Earth’s oldest stories in the margins most of us never see. Each new species helps us map food webs, refine protections, and—if you’re a certain dapper shark—tell better tales at supper.

If this little tour sparked your curiosity, dip into our learning posts and guides, then wander our gallery of ocean-inspired art. As we like to say: Fossils With a Story, Art With a Soul.

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