Polar bear livers contain an astonishing amount of vitamin A, leading to severe health risks if consumed by humans, including skin peeling due to toxicity. This vitamin, unlike others, cannot be excreted easily, accumulating in the body and causing distress. The discussion highlights how toxins like polychlorinated biphenyls also bioaccumulate in fatty animals at the top of the food chain, emphasizing the dangers of consuming wildlife from polluted environments.
