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A still-green chestnut burr on a branch, covered in many long spikes.Food and dining · Nov 6, 2026Chestnuts and ‘marrons’: the right fruit and the right kitchen techniquesUnder its shell, the chestnut is still a fresh, delicate fruit. Understanding the word ‘marron’, choosing your product and planning its preparation can prevent many mistakes, even before you turn on the oven.A path through a broadleaf forest near Echternach, illustrative photograph from 2019.Nature and environment · Nov 6, 2026Biodiversity: what satellites can measure, and what needs checking on the groundThe ESA is strengthening its ecosystem-monitoring tools. But a protected area on a map does not, by itself, prove that nature is doing better there. Here’s how to read this new data.Cheetah photographed in the Masai Mara, Kenya, in 2015; illustrative photo, unrelated to KNG22.Nature and environment · Nov 6, 2026Cheetah killed in India: protection must extend beyond Kuno’s bordersThe death of KNG22, wounded by gunshot pellets outside Kuno, has prompted an investigation. It is a reminder of why births and long-term protection must be assessed separately.Grassland and water in a wetland at Lake Andes, South DakotaNature and environment · Nov 4, 2026After COP17, financing nature also means reviewing the spending that harms itBiodiversity pledges do not tell the whole story. UN and IISD figures invite us to distinguish between money announced, harmful spending and benefits that have actually been assessed.Palms and tropical vegetation on the island of Bohol, in the PhilippinesNature and environment · Nov 4, 2026Threatened palms: why our gardens don’t tell their whole storyA cultivated species can remain threatened in the wild. Research in Madagascar and around the world shows how to interpret the figures and the limits of conservation.Xiaozhai sinkhole seen from its southern rim, with its limestone cliffs and vegetation, in November 2009.Nature and environment · Nov 1, 2026Xiaozhai Tiankeng: understanding China’s sinkhole and its forestsAt Xiaozhai, the sinkhole reaches a depth of 662 metres, depending on the point of measurement. This spectacular landscape has long been known; research into tiankengs sheds light on the links between landforms, water and living things.Woodland and a leaf-covered path in a forest in the Vosges.Nature and environment · Nov 1, 2026Nature volunteering in Alsace: how to help the ConservatoireA day’s conservation work, regular site visits or wildlife monitoring: the CEN Alsace offers several ways to get involved. Here’s how to choose a commitment and understand its purpose.The Orangerie at the Palace of Versailles and the flowerbeds in its gardensClimate · Oct 28, 2026At Versailles, adapting heritage to the climate begins with observationHeat, humidity, drought: the palace and its gardens do not call for the same responses. Monitoring collections and biodiversity helps guide interventions.The Rhône and the quays of Arles, photographed from the opposite bank in April 2008.Nature and environment · Oct 28, 2026European sturgeon: what its disappearance from the Rhône tells us about migratory fishAcipenser sturio has been absent from the Rhône basin since the 1970s. Its life cycle between the sea, estuary and river explains why its conservation goes beyond protecting a single location.Gold torque found in the Vix tomb, open circular in shape with two spherical ends, photographed at an exhibition in Bern in 2009.Culture · Oct 28, 2026The Celts: what archaeology reveals behind the clichésBehind the warrior stereotypes, excavations reveal towns, craftspeople and exchanges between regions. From Bibracte to Lavau, what archaeology tells us about the Celts.A butternut squash cut in half, with its seeds visible on a chopping board.Books · Oct 27, 2026Bioconscience: looking at life without losing precisionMaxime Blondeau’s illustrated book brings science and philosophy together. The Svalbard Global Seed Vault offers a concrete example of the distinctions that need to be preserved.Light and reflections beneath the surface of turquoise water.Books · Oct 26, 2026Guillaume Pitron: why the oceans are becoming a new arena for rivalryIn *Océans. Le nouveau partage du monde*, published on 14 October 2026, the journalist examines the scramble for undersea resources. The law of the sea and ecological risks shed light on what is at stake.
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