As this example illustrates, descendants of an ancestral lineage tend to share ... living species amounts to understanding where on the tree of life these species' distinctive traits arose.

Tree diagrams have been used in evolutionary ... Figure 2B shows what we might see if we followed the fate of a single ancestral lineage (Figure 2A) long enough that it gave rise to four ...

“All the organic beings which have ever lived on this earth have descended from some one primordial form,” the English naturalist postulated in his ... the evolutionary relationships among living ...