French Spatial analyst Marie-Anne Blanchet shows a heart-logger graphics implanted (record Heart pulse and body temperature) on the female polar bear in a laboratory onboard the science icebreaker vessel 'Kronprins Haakon' while sailing in eastern Spitzbergen, in the Svalbard archipelago, on April 8, 2025. The Norwegian Polar Institute, an Arctic research organisation, organised a five-week expedition aboard the high-tech research vessel and icebreaker Kronprins Haakon to collect adipose tissue biopsies and blood samples from polar bears in order to study the impact of pollutants on their health. (Photo by Olivier MORIN / AFP via Getty Images)

Belgian toxicologist Laura Pirard, specialized in marine mammals, shows biopsy slices samples of polar bears adipose tissue, in a laboratory onboard the science icebreaker vessel 'Kronprins Haakon' while sailing in eastern Spitzbergen, in the Svalbard archipelago, on April 9, 2025. The Norwegian Polar Institute, an Arctic research organisation, organised a five-week expedition aboard the high-tech research vessel and icebreaker Kronprins Haakon to collect adipose tissue biopsies and blood samples from polar bears in order to study the impact of pollutants on their health. (Photo by Olivier MORIN / AFP via Getty Images)

This picture shows two biopsies of adipose tissue taken from a polar bear, before being sliced, in a laboratory onboard the science icebreaking vessel 'Kronprins Haakon' while sailing in eastern Spitzbergen, in the Svalbard archipelago, on April 9, 2025. The Norwegian Polar Institute, an Arctic research organisation, organised a five-week expedition aboard the high-tech research vessel and icebreaker Kronprins Haakon to collect adipose tissue biopsies and blood samples from polar bears in order to study the impact of pollutants on their health. (Photo by Olivier MORIN / AFP via Getty Images)

French spatial scientist Marie-Anne Blanchet, shows a GPS tracking map of female polar bears over the course of a year, in a laboratory onboard the science icebreaker vessel 'Kronprins Haakon' while sailing in eastern Spitzbergen, in the Svalbard archipelago, on April 17, 2025. The Norwegian Polar Institute, an Arctic research organisation, organised a five-week expedition aboard the high-tech research vessel and icebreaker Kronprins Haakon to collect adipose tissue biopsies and blood samples from polar bears in order to study the impact of pollutants on their health. (Photo by Olivier MORIN / AFP via Getty Images)

Belgian toxicologist Laura Pirard, specialized in marine mammals, works on biopsy samples of polar bear adipose tissue, in a laboratory onboard the science icebreaker vessel 'Kronprins Haakon' while sailing in eastern Spitzbergen, in the Svalbard archipelago, on April 9, 2025. The Norwegian Polar Institute, an Arctic research organisation, organised a five-week expedition aboard the high-tech research vessel and icebreaker Kronprins Haakon to collect adipose tissue biopsies and blood samples from polar bears in order to study the impact of pollutants on their health. (Photo by Olivier MORIN / AFP via Getty Images)

French Spatial analyst Marie-Anne Blanchet shows a heart-logger implanted (record Heart pulse and body temperature) on the female polar bear in a laboratory onboard the science icebreaker vessel 'Kronprins Haakon' while sailing in eastern Spitzbergen, in the Svalbard archipelago, on April 7, 2025. The Norwegian Polar Institute, an Arctic research organisation, organised a five-week expedition aboard the high-tech research vessel and icebreaker Kronprins Haakon to collect adipose tissue biopsies and blood samples from polar bears in order to study the impact of pollutants on their health. (Photo by Olivier MORIN / AFP via Getty Images)

Belgian toxicologist Laura Pirard (R), who specialises in marine mammals, tests the 'Slice' method on polar bear adipose tissue biopsies, with Finnnish toxicologist specialising in marine mammals, Heli Routti (L), in a laboratory onboard the science icebreaking vessel 'Kronprins Haakon' while sailing in eastern Spitzbergen, in the Svalbard archipelago, on April 6, 2025. The Norwegian Polar Institute, an Arctic research organisation, organised a five-week expedition aboard the high-tech research vessel and icebreaker Kronprins Haakon to collect adipose tissue biopsies and blood samples from polar bears in order to study the impact of pollutants on their health. (Photo by Olivier MORIN / AFP via Getty Images)

Belgian toxicologist Laura Pirard, who specialises in marine mammals, works on biopsy samples of polar bear adipose tissue, in a laboratory onboard the science icebreaker vessel 'Kronprins Haakon' while sailing in eastern Spitzbergen, in the Svalbard archipelago, on April 9, 2025. The Norwegian Polar Institute, an Arctic research organisation, organised a five-week expedition aboard the high-tech research vessel and icebreaker Kronprins Haakon to collect adipose tissue biopsies and blood samples from polar bears in order to study the impact of pollutants on their health. (Photo by Olivier MORIN / AFP via Getty Images)