What is phylogenetics?
Phylogenetics is the study of the evolutionary history and relationship among individuals or group of organisms.
These relationships are discoverd through phylogenetic inference methods that evaluate observed heritable traits. The result of these analyses is a phylogenetic tree - a diagrammatic hypothesis about the history of the evolutionary relationship of a group of organism.
A phylogenetic tree or evolutionary tree is a branching diagram or 'tree' , showing the inferred evolutionary relationships among various biological species.
The taxa joined together in the tree are implied to have descended from a common ancestor.
The tips of a phylogenetic tree can be living organisms or fossils and the end or the present in an evolutionary lineage. Phylogenetic analyses have become central to understanding biodiversity, evolution , ecology and genome.