Here's why:
* Family trees focus on direct lineage and relationships within a single family. They are linear and show direct ancestor-descendant connections.
* Phylogenetic trees are more complex and represent evolutionary relationships across multiple species and entire groups. They are branching structures that show the evolutionary history of life, based on shared characteristics and genetic similarities.
Key differences:
* Scope: Family trees are limited to one family, while phylogenetic trees encompass broader evolutionary relationships.
* Structure: Family trees are linear, while phylogenetic trees are branched, showing divergence points and common ancestors.
* Information: Phylogenetic trees can show the degree of relatedness between species, estimated time of divergence, and other evolutionary insights.
Therefore, phylogenetic trees are the preferred tool for depicting the complex evolutionary history of life on Earth.
