Biological magnification refers to the process where harmful substances such as toxins and heavy metals accumulate in organisms at higher trophic levels in an ecosystem. As smaller organisms absorb these pollutants, they are consumed by larger predators, leading to increased concentrations of harmful substances in the food chain. This phenomenon poses significant threats to wildlife and human health, as higher-level predators can experience severe health issues and reduced reproductive success. Understanding biological magnification is essential for managing pollution and protecting vulnerable species from environmental toxins.