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Lizard Evolution Virtual Lab
Module 2: Phylogeny
1. In module 1, you identified which species of lizards were most similar to one another based on
relative limb length and toe pad size. In this module, you determined which lizards are more
similar to one another based on what type of information?
2. Are the species of lizard that are more similar to one another according to body type also more
closely related based on the results obtained in this module? Explain your answer.
3. The figures below show two phylogenetic trees similar to the one you constructed in the virtual
lab but with more lizards. The trees below show the evolutionary relationships among species
from four ecomorphs from the four largest Caribbean islands.
Figure 1. Phylogeny of anole lizards on four
of the major Caribbean islands color-coded
according to geographical distribution. Light
dotted line, Puerto Rico; small dashed line,
Cuba; large dashed line, Hispaniola; and solid
Figure 2. Phylogeny of anole lizards in the
four major Caribbean islands colored in
according to ecomorph. Light dotted line,
twig; small dashed line, trunk-ground; large
dashed line, trunk-crown; solid line, grass-