Scientists are pondering the classification of an ancient fish. The two specimens discovered ... of this species' position in ...

Thus, understanding the evolutionary history of living species amounts to understanding where on the tree of life these species' distinctive traits arose. Moreover, phylogenetic trees serve as ...

A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ... but [the] placement of the yunnanozoans on the phylogenetic tree,” David Jandzik, an ...

This example illustrates the fact that a phylogeny is, at its most basic level, a history of descent from common ancestry. Phylogenetic trees are fractal in the sense that the same pattern is ...

evolutionary biologists can infer how closely related they are and map out their evolutionary history. The result of this analysis is a phylogenetic tree, which illustrates the branching patterns ...