Michal Kosior, gemologist, amber specialist and founder of "Amber Expert", presents a piece of amber with an ant inclusion under the microscope light in his laboratory in Gdansk, northern Poland, on March 11, 2026. Formed some 40 million years ago from conifer resins, amber often contains air bubbles, plant fragments or insects trapped before fossilisation, granting each piece a unique "fingerprint". In Gdansk itself, workshops, shops and stalls dedicated to amber abound on every corner of the historic centre, each attracting flocks of tourists. (Photo by Wojtek RADWANSKI / AFP)