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Researchers at the Universidade Estadual de Ponta Grossa in southern Brazil have identified a previously unknown species of ancient marine bivalve from a fossil roughly 400 million years old, adding a new chapter to the story of life in the prehistoric seas that once covered much of South America. The newly named species, Actinopteria grahni, was recovered from rock layers belonging to the Devonian Period, long before dinosaurs walked the Earth.

Beneath forests, grasslands and even the soil in our gardens lies an extraordinary hidden world that most people never see. Scientists have now mapped a vast underground network of microscopic fungi stretching an estimated 110 quadrillion kilometres across Earth's topsoil, a distance so immense that it could reach the Sun nearly a billion times.

Every year, the world generates hundreds of millions of tonnes of plastic waste, and the vast majority of it ends up in places where it is not useful. A landmark 2025 study published in Nature Communications Earth & Environment, which conducted a global trade-linked material flow analysis of plastics for 2022, found that the global plastic recycling rate has remained stuck at just 9 per cent, with incineration now the dominant disposal method at 34 per cent and landfilling at 40 per cent.