What we know and what we need to know about Antarctic marine viruses
Peer-Reviewed Publication
Updates every hour. Last Updated: 31-Oct-2025 18:11 ET (31-Oct-2025 22:11 GMT/UTC)
The Antarctic is a harsh and unforgiving climate for many, though there is no shortage of important biological activity happening in the frigid temperatures. Antarctic marine viruses, while proven to be important players in the ecosystem, are not completely understood. Here, researchers aim to fill in the gap between what is known and what is unknown, with a primary focus on RNA viruses, the influence of climate change and what the implications might mean for the rest of the world.
An international team of scientists led by the Doñana Biological Station (EBD-CSIC) has described a new species of fossilized insect from the Australian Jurassic period, estimated to be around 151 million years old. It represents the oldest known member in the Southern Hemisphere of the Chironomidae family — non-biting midges that inhabit freshwater environments. The fossil shows a unique evolutionary adaptation: a mechanism, that likely allowing it to firmly anchor to surrounding rocks. Until now, this mechanism was thought to be exclusive to marine species.
A team of scientists from Southern University of Science and Technology has published a paper highlighting the importance of human exploration in the three deeps – deep space, deep sea, and deep Earth. Their paper is published in the journal Ocean-Land-Atmosphere Research on September 11, 2025.
Climate-driven oxygen loss in the Black Sea thousands of years ago triggered the expansion of microorganisms capable of producing the potent neurotoxin methylmercury. That is shown in a new study published in Nature Water, led by Eric Capo at Umeå University, which suggests that similar processes could occur in today’s warming oceans.
A Tulane University-led study published in Nature Geoscience reveals that melting North American ice sheets were the primary driver of dramatic sea-level rise at the end of the last ice age, overturning long-held assumptions that Antarctica played the larger role. Between 8,000 and 9,000 years ago, retreating North American ice sheets caused more than 30 feet (10 meters) of global sea-level rise, reshaping scientists’ understanding of Earth’s climate history.