Why only one genus and species remains in the hominin group?
The hominin group has diversified over millions of years, with different species evolving and going extinct. The reason only one genus and species, Homo sapiens, remains today is likely due to various factors such as competition, environmental changes, and possibly interbreeding with other hominin species. Homo sapiens thrived and adapted better than other hominin species, leading to their dominance and survival until today.