A biologist uses a microscope to observe pinewood nematodes (Bursaphelenchus xylophilus - screen background), microscopic worms attacking conifers, at a laboratory of the Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE) in Villenave-d'Ornon, outside Bordeaux, on September 9, 2026. (Photo by Christophe ARCHAMBAULT / AFP via Getty Images)