In a small stretch of the Atlantic Forest in southern Brazil lives a bright-orange species of frog that’s new to science, researchers report in a recent study. The miniature amphibian measures just over a centimeter long, less than half an inch, or the length of an average fingernail.
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OpenAI announced on May 20 that one of its AI models disproved a conjecture posed by Hungarian mathematician Paul Erdős in 1946, solving what’s known as the planar unit distance problem.
Cognitive skills assessed in the studies included memory recall, decision-making, and response speed and accuracy. When these assessments were taken as a whole, short-term fasting (with a median duration of 12 hours) didn’t significantly change the scoring.
Banner image: Poison dart frog of the species Ranitomeya aetherea, described from the Juruá River Basin, western Amazon, in 2023. Image courtesy of Alexander Mônico.
The Upper Nicola Band released 11 captive-born owls in spax̌mn — part of a decade-long effort to reinstate the tiny birds of prey whose populations have plummeted
Salmon are becoming river “ghosts” as brutal droughts and violent floods cause unprecedented losses on their treacherous journey to the Pacific Ocean, scientists say. A study led by the University of Essex; NOAA Fisheries; University of California, Davis; and Cramer Fish Sciences has found that young Californian Chinook salmon face a deadly double threat from extreme weather and the destruction of historical wetland habitats they rely on.
For decades, coral reefs throughout the Caribbean have been suffering from disease, pollution, overfishing and rising sea temperatures, yet most have continued to grow—until now.
The Timor green pigeon, which is under pressure from hunting and habitat loss, is at serious risk of extinction and should be uplisted to Critically Endangered, according to a new study from researchers at Charles Darwin University and BirdLife International.
Banner image: Deforestation, climate change and trade pose threats to the species, which has dwindled to a few hundred from some 750,000 in the 1960s. Image by kaysud via iNaturalist (CC BY-NC 4.0).
A team led by Takao Mori at Japan’s National Institute for Materials Science (NIMS) published this work in Nature (vol. 652, pages 643–649, 2026). The paper introduces TEGNet, a neural network that predicts thermoelectric generator performance with greater than 99% accuracy while using only 0.01% of the compute time of commercial finite-element solvers.
An international team led by DTU Chemistry has made Cr(pyrazine)₃, a molecular framework that holds a strongly ordered internal magnetic structure while leaking almost no external field, and keeps that balance from cryogenic temperatures to well above room temperature. The work appears in Nature Chemistry (DOI: 10.1038/s41557-026-02131-8).
Banner image: An image of a male Hemiphyllodactylus ziegleri. Courtesy of Pham A.V. et al (2026) under Creative Commons Attribution License (CC BY 4.0).
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