Species without names cannot be legally protected
Scientists discovered 1,121 new marine species in deep oceans over one year, a 54% surge driven by international collaboration across 85 countries. Findings include ghost sharks, carnivorous sponges, and organisms thriving at 6km depths; some toxins show potential for treating Alzheimer's and schizophrenia.
- 1,121 new marine species discovered in one year—a 54% increase from previous years
- Over 1,000 researchers from 85 countries participated in the Ocean Census expeditions
- Discoveries include ghost sharks, carnivorous sponges, and organisms thriving at depths exceeding 3,600 meters
- Formal scientific naming of a species can take up to 13.5 years
- Toxins from newly discovered worms show potential for treating Alzheimer's and schizophrenia
International Ocean Census mission identified 1,121 new marine species in deep ocean trenches, a 54% increase from previous years, including ghost sharks and carnivorous sponges from extreme-pressure environments.
A year of deep-sea exploration has yielded 1,121 previously unknown marine species, according to findings released this week by the Ocean Census, an international research initiative. The discovery rate represents a 54 percent jump from the pace of identification in prior years, marking a significant acceleration in humanity's understanding of life in the ocean's most remote and inhospitable zones.
The newly catalogued creatures inhabit environments of crushing pressure and absolute darkness, kilometers below the surface where sunlight never penetrates. Among them are ghost sharks—distant relatives of rays and sharks that diverged from their cousins roughly 400 million years ago—alongside carnivorous sponges, unusually colored shrimp, anemones, corals, and marine worms. The Ocean Census, led jointly by Japan's Nippon Foundation and the United Kingdom's Nekton organization, marshaled more than 1,000 researchers from 85 countries to conduct expeditions across remote ocean regions near Japan, Australia, France, and Timor-Leste.
One discovery near Japan, at roughly 800 meters down, revealed a previously unknown polychaete worm living inside a glass sponge—a structure composed of translucent silica arranged like a delicate mesh, sometimes called a glass castle. The relationship between organism and host is symbiotic: the worm gains shelter and nutrients while helping to clean debris from the sponge's surface. Off the coast of Timor-Leste, researchers identified a ribbon worm about 2.5 centimeters long, marked by orange stripes that signal its chemical defenses. Scientists are now studying the toxins these organisms produce, believing they may hold therapeutic potential for neurodegenerative diseases like Alzheimer's and psychiatric conditions including schizophrenia.
In the South Sandwich Islands, at approximately 3,600 meters depth, an expedition uncovered a carnivorous sponge equipped with microscopic hook-like structures that function as traps. These hooks snare small crustaceans drifting through the water column, which the sponge then digests. Near Australia, at 820 meters, researchers documented a chimera—the formal name for what is commonly called a ghost shark.
The deep ocean remains among the least studied regions on Earth, with vast stretches of biodiversity still unmapped and unnamed. Yet there is urgency underlying this work. Michelle Taylor, the Ocean Census's scientific director, framed the challenge starkly: many species face extinction before they are ever formally documented, creating what amounts to a race against time to understand and safeguard marine life before environmental change and industrial and agricultural pollution degrade these ecosystems beyond recovery.
A significant obstacle complicates conservation efforts: the formal scientific naming of a new species can take as long as 13.5 years. During that interval, a creature remains scientifically unnamed and therefore, in practical terms, invisible to policy makers and protection frameworks. As researcher Tammy Horton from the United Kingdom's National Oceanography Centre explained, species without formal names cannot be legally protected because they do not officially exist within the scientific record that informs environmental law.
To circumvent this bottleneck, the Ocean Census has introduced a new classification: the status of "discovery," which can be immediately registered in its open-access database once validated by a specialist. The Ocean Census NOVA platform now makes these newly recognized discoveries available to the scientific community and policymakers without waiting for the lengthy formal naming process to conclude.
Oliver Steeds, the Ocean Census director, argued that the investment required to accelerate marine discovery is modest by comparison to other scientific ambitions. Humanity spends billions searching for life on Mars and funding lunar missions, he noted, yet cataloguing the majority of life on Earth—specifically within our own oceans—costs a fraction of that sum. The real question, Steeds suggested, is not whether we can afford to do this work, but whether we can afford not to.
Notable Quotes
Many species face extinction before they are ever formally documented, creating a race against time to understand and safeguard marine life.— Michelle Taylor, scientific director of the Ocean Census
Species without formal names cannot be legally protected because they do not officially exist within the scientific record that informs environmental law.— Tammy Horton, researcher at the National Oceanography Centre, United Kingdom
The Hearth Conversation Another angle on the story
Why does it matter that we found 1,121 new species this year instead of, say, 700 last year? What changes because the number is higher?
The rate itself tells us something crucial: we're getting better at looking, and we're finding that life down there is far more diverse than we realized. A 54 percent jump suggests the ocean's depths are even more populated than previous estimates. That changes how we think about what we stand to lose.
But these creatures live six kilometers down. How does discovering them affect anyone living on land?
Right now, it mostly doesn't—except through what we might learn from them. Those toxins in the Timor-Leste worms, for instance. They could lead to treatments for Alzheimer's or schizophrenia. But the deeper point is that these ecosystems are interconnected with the rest of the ocean. Damage the deep, and you damage the whole system.
The article mentions a 13.5-year naming process. That seems absurdly long. Why does it take that long?
It's not bureaucratic laziness. Scientists need to verify the organism is truly new, study its anatomy thoroughly, compare it to related species, publish findings in peer-reviewed journals. It's rigorous. But the consequence is that a species can go extinct before it's officially named—and before any law can protect it.
So the Ocean Census created this "discovery" status to speed things up?
Exactly. They're saying: we can validate that this is new, register it immediately in an open database, and let policymakers and other scientists work with that information right away. It's a pragmatic workaround to a real problem.
Oliver Steeds compared the cost of ocean exploration to Mars missions. Is that a fair comparison?
It's rhetorically effective, and there's truth in it—we do spend vastly more on space exploration. But his point isn't really about budgets. It's about priorities. We're racing to document life on our own planet before we lose it, and we're doing it on a shoestring compared to other scientific endeavors.