Extinction is the complete and permanent disappearance of a species from the Earth when the last surviving individual dies. It is a natural biological process that has occurred throughout the history of life, but the current rate of extinction has increased dramatically due to human activities. In Biological Anthropology, the study of extinction is important because it helps explain the evolutionary history of humans, the disappearance of ancestral species, and the factors that have shaped biodiversity over millions of years. Extinction is closely linked with the theory of evolution. Charles Darwin explained that species evolve through natural selection, and those unable to adapt to changing environmental conditions may eventually become extinct. Extinction is therefore a natural outcome of evolution, making way for the emergence and diversification of new species. The fossil record provides valuable evidence of extinct organisms and enables anthropologists to reconstruct evolutionary relationships among different hominin species and other primates. There are several types of extinction. Background extinction refers to the normal and gradual disappearance of species over geological time due to natural causes such as competition, disease, predation, and environmental changes. Mass extinction, on the other hand, is a rapid and widespread loss of a large number of species