Editing Phylogenetic tree (section)

=== Bifurcating versus multifurcating ===
Both rooted and unrooted trees can be either [[bifurcation theory|bifurcating]] or multifurcating. A rooted bifurcating tree has exactly two descendants arising from each [[interior node]] (that is, it forms a [[binary tree]]), and an unrooted bifurcating tree takes the form of an [[unrooted binary tree]], a [[free tree]] with exactly three neighbors at each internal node. In contrast, a rooted multifurcating tree may have more than two children at some nodes and an unrooted multifurcating tree may have more than three neighbors at some nodes.{{citation needed|date=June 2024}}