The main consequence of species extinction is the loss of biodiversity within ecosystems, which can disrupt ecological balance and diminish resilience. An extinction event can lead to the collapse of food webs, as the loss of a single species often affects numerous others that rely on it for survival. Additionally, extinction can result in diminished ecosystem services, such as pollination, nutrient cycling, and climate regulation, ultimately impacting human well-being. Addressing extinction is essential for preserving the health and stability of our planet's biodiversity.