Why are phylogenetic trees useful?
Helps to know ancestral history and time.
The phlogenetic trees help in knowing the evolutionary history of organisms or groups of organisms. it shows, "How and when other braches of the phylogenetic trees have evolved from the main stock.' It discloses the time of origin and subsequent evolution from simple to complex.
The trees also show the history of extinction of the related organisms during the course of evolutionary history. Thank you