Tree Diagram Illustrating Decline in the Rate of Species Formation of <i>Brookesia</i> Chameleons (IMAGE)
Caption
A tree diagram of the Brookesia chameleons on Madagascar shows a decline in the rate of species formation within the clade. The horizontal lines represent individual species, with the lengths of the lines showing relative time. The nodes depict the points at which new species are formed. The relatively few nodes at the right of the diagram, as we approach the present day, illustrate a decline in species diversification.
Credit
Graphic by Daniel Scantlebury.
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