You discover a new species of ape that looks like a gorilla but walks upright. How would you change the phylogeny above?

A. no change, because only molecular data
are considered when studying evolutionary
relationships
B. no change until a fossil of the new species
is found because fossil evidence is a required
component of the data set
C. I would group gorillas with humans based
on the synapomorphy (shared trait) of upright
walking.
D. I would branch the gorilla lineage and add
the new species with the defining trait "upright
stance".


D

Biology & Microbiology

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