Caimans With More Mercury in Their Blood Mounted Weaker Stress Responses in French Guiana Field Tests
Nature World News | 11.11.2026 11:46
Wild caimans with more mercury in their blood produced weaker stress-hormone spikes during standardized field tests in French Guiana, according to a study from the University of Vienna and the Veterinary University of Vienna. The finding suggests that pollution linked to gold mining may quietly weaken a survival system in one of the rainforest's armored apex predators.
