Ans - It means the evolutionary history of a species. A phylogenetic tree is made to display the evolutionary relationship between various species and other biological entities which supports the differences and similarities in their genetic and physical traits. It is indicated through the tree that each one life on Earth is from common ancestry. Hence it is based on the assumption that more closely related species are more similar to one another. The tools make a difference between phylogenetic trees and environmental layers with occurrence data of species facilitating relatively newer perspectives on biodiversity.