A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.

Using Tree Parts and Natural Ranges for Species Identification Help #1 - Find out what your tree and its parts look like.

How do scientists diagram evolutionary relationships? Scientists represent evolutionary relationships with tree diagrams (also called cladograms) because new life forms appear the way new branches ...