Why do scientist today rely on primarily to determine evolutionary history?

Scientists today primarily rely on molecular genetics and genomics to determine evolutionary history because these methods provide insights into the genetic relationships among species. By analyzing DNA sequences, researchers can identify similarities and differences that reflect evolutionary divergence. Additionally, tools like phylogenetic analysis allow scientists to construct evolutionary trees, illustrating the connections between species based on genetic data. This molecular approach often complements traditional methods, such as fossil records and morphological comparisons, offering a more comprehensive understanding of evolution.