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481221
Caption: Two phylogenies based on the amount of change in macromolecules.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 14.02 MB
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481149
Caption: The evolution of the brachiopod Eocelia. The horizontal bars indicate the observed range of rib strength among fossilized finds.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 44.23 MB
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481016
Caption: Genetic differentiation between populations of Drosophila willistoni.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 38.70 MB