Parasitism and predation are two significant interactions in the human environment that influence ecosystems, biodiversity, and human health. Both represent forms of biological relationships where one organism benefits at the expense of another, but they differ in their dynamics, impacts, and management strategies. Parasitism is a relationship in which one organism, the parasite, lives on or inside another organism, the host, deriving nutrients or shelter at the host’s expense. Parasites are typically smaller than their hosts and do not immediately kill them, as the survival of the host is crucial for the parasite’s continued existence. Examples include intestinal worms like Ascaris lumbricoides, protozoan parasites such as Plasmodium species causing malaria, and ectoparasites like lice and ticks. In the human environment, parasitism has significant implications for public health, agriculture, and domestic animal management. Parasitic infections can reduce human