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Science News for February 20, 2026


Does ocean saltiness influence El Niño?

Researchers found that certain salinity patterns can fuel El Niño development, increasing its intensity by 20%. This process makes extreme El Niño events more likely and causes catastrophic flooding and severe droughts. The study identified global patterns in salinity preceding major El Niño events over the past 65 years.

SourceDuke University·JournalGeophysical Research Letters·DateFeb 20, 2026

AI language models could transform aquatic environmental risk assessment

AI language models can extract and integrate information from vast amounts of unstructured environmental data, identifying pollutants and their toxic effects. While still in its early stages, the application of LLMs in aquatic risk assessment has the potential to support more dynamic and data-driven risk management strategies.

New NSF award supports innovative role-playing game approach to strengthening research security in academia

The project aims to help universities better understand research security by examining human and behavioral dimensions of risk. Structured role-playing games will simulate realistic academic scenarios, encouraging participants to explore trade-offs and motivations that often remain hidden in standard security planning.

New isotope tools reveal hidden pathways reshaping the global nitrogen cycle

Advances in isotope science are transforming our ability to trace nitrogen through ecosystems, offering powerful tools for managing environmental change. Isotopic methods can distinguish pollution sources, track microbial transformations, and quantify nitrogen uptake by plants, providing insights into the global nitrogen cycle.

Genetics help explain who gets the ‘telltale tingle’ from music, art and literature

A study by Max Planck Institute for Psycholinguistics found that genetic variations account for approximately 30% of the variation in experiencing aesthetic chills. The research also identified shared genetic influences across music, poetry, and visual art, linked to broader personality traits like openness to experience.

SourceMax Planck Institute for Psycholinguistics·JournalPLOS Genetics·TypeExperimental study·DateFeb 20, 2026

Toxic exposure creates epigenetic disease risk over 20 generations

A new study found that a single toxic fungicide exposure during pregnancy can increase the risk of disease for 20 subsequent generations, with inherited health problems worsening over time. The study suggests that epigenetic disease inheritance could help explain rising chronic disease rates in humans.

SourceWashington State University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 20, 2026

New study suggests a “kick it while it’s down” approach to cancer treatment could improve cure rates

A new study suggests that switching to a second treatment while a tumor is still responding to the first may improve cure rates. The 'kick it while it's down' approach targets small tumors and has been shown to be successful in other contexts, such as combatting antibiotic resistance.

SourceCity St George’s, University of London·JournalGenetics·TypeComputational simulation/modeling·DateFeb 20, 2026

Discovery could improve immune checkpoint inhibitor safety

Scientists at Cincinnati Children's Hospital Medical Center have discovered a way to reduce the risk of a lethal side effect in cancer patients treated with immune checkpoint inhibitors. By targeting CD8 T cell-derived tumor necrosis factor, they found that blocking TNF signaling can prevent inflammatory cycle in the heart.

SourceCincinnati Children's Hospital Medical Center·JournalJournal of Experimental Medicine·TypeExperimental study·DateFeb 20, 2026

The Journal of Nuclear Medicine ahead-of-print tip sheet: February 20, 2026

Researchers have made significant advancements in nuclear medicine by developing a new reporting framework for PET/CT scans, using targeted radiation therapy to treat sarcoma, and investigating how genetic mutations affect prostate cancer treatment outcomes. These studies aim to improve diagnosis and treatment for various cancers.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateFeb 20, 2026

New insights into how bacteria control DNA synthesis open the door to next generation antimicrobials

The study provides detailed information on NrdR, a master regulator of ribonucleotide reductases in bacteria. It reveals how NrdR senses nucleotide levels and controls RNR expression, providing a new strategic entry point for antimicrobial development.

SourceInstitute for Bioengineering of Catalonia (IBEC)·JournalInternational Journal of Biological Macromolecules·TypeExperimental study·DateFeb 20, 2026

ACS Central Science | Researchers from Insilico Medicine and Lilly publish foundational vision for fully autonomous “Prompt-to-Drug” pharmaceutical R&D

Researchers from Insilico Medicine and Lilly outline a comprehensive framework for fully autonomous, AI-orchestrated drug discovery. The vision integrates AI-driven target discovery, generative chemistry, automated synthesis, biological validation, and clinical planning into a single workflow.

SourceInSilico Medicine·TypeNews article·DateFeb 20, 2026

Tackling uplift resistance in tall infrastructures sustainably

Researchers developed a winged composite pile foundation system to enhance wind resistance and utilize surplus excavated soil. The study found that larger expanded base wing diameters significantly increased uplift resistance, while soil density and surface characteristics of the steel components also played crucial roles.

SourceShibaura Institute of Technology·JournalResults in Engineering·TypeExperimental study·DateFeb 20, 2026

Physical function is a crucial predictor of survival after heart failure

Researchers developed a new model to predict long-term survival after heart failure in elderly Japanese patients. The Top-20 XGBoost model incorporates physical function metrics, rivaling the importance of traditional cardiovascular risk factors, and provides a more accurate estimation of mortality risk.

SourceJuntendo University Research Promotion Center·JournalThe Lancet Regional Health - Western Pacific·TypeComputational simulation/modeling·DateFeb 20, 2026

Hidden genetic mismatch, which triples the risk of a life-threatening immune attack after cord blood transplantation

A large registry study identifies a specific genetic mismatch linked to severe acute graft-versus-host disease (aGVHD) after cord blood transplantation, tripling the risk of life-threatening complications. Researchers found that a particular HLA combination in donors and recipients increased aGVHD risk by threefold.

SourceFujita Health University·JournalTransplantation and Cellular Therapy·TypeObservational study·DateFeb 20, 2026

AABNet and partners launch landmark guide on the conservation of African livestock genetic resources and sustainable breeding strategies

The new open-access reference guide emphasizes that breeding objectives must reflect farmer priorities and production realities. Local breeds are critical for climate adaptation and resilience in small-scale and low-input production systems, but many are at risk of extinction due to indiscriminate crossbreeding with exotic breeds.

Cleaner fish show intelligence typical of mammals

Researchers observed cleaner wrasse recognizing themselves in mirrors and experimenting with it, suggesting advanced intelligence known as 'contingency testing'. The fish also demonstrated flexible, self-referential processing, indicating widespread self-awareness across taxonomic groups, including fish.

SourceOsaka Metropolitan University·JournalScientific Reports·TypeExperimental study·DateFeb 20, 2026

Produce hydrogen and oxygen simultaneously from a single atom! Achieve carbon neutrality with an 'All-in-one' single-atom water electrolysis catalyst

Researchers at KIST developed an all-in-one single-atom water electrolysis catalyst that stably performs both hydrogen evolution and oxygen evolution reactions on a single electrode. This technology significantly reduces precious metal usage while achieving outstanding performance and durability.

SourceNational Research Council of Science & Technology·JournalAdvanced Energy Materials·DateFeb 20, 2026