A phylogenetic tree is a diagram that represents evolutionary relationships among organisms. ... The pattern of branching in a phylogenetic tree reflects how species or other groups evolved from a series of common ancestors.

What is the purpose of using phylogenetic trees?

Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms.

What is the phylogenetic tree based on?

A phylogenetic tree (also phylogeny or evolutionary tree) is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.