caseywdunn / phylogenetic_biology

A book for my course
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clarify outgroup rooting #22

Open caseywdunn opened 4 years ago

caseywdunn commented 4 years ago

Confusion in class how placing root in outgroup gives you the root of ingroup, since now you are discussing two roots in one tree but only one point can be the oldest. Talk more about how each subtree (clade) has a root, and we can talk about those roots in the context of a single tree.