Large brains are a defining feature of primates, as is a clear allometric trend between body mass and brain size. However, important questions on the macroevolution of brain shape in primates rema
Values in the ′95% C. L.’ provide the 95% confidence interval for each slope. P-values in the column ‘Departures?’ are the results of F-tests testing for departures from the predicted slope of 1/3. Si
Allometry linear regression results: Slope (b), with 95% confidence intervals (CI), intercept (log10(a)), coefficient of determination (R2), and p-values for the regression slopes.
Background: Phenotypic diversity among populations may result from divergent natural selection acting directly on traits or via correlated responses to changes in other traits. One of the most frequen
Tyrannosaurid theropods topped the terrestrial food chain in North America and Asia during the latest Cretaceous. Most tyrannosaurids, exemplified by Tyrannosaurus rex, had deep snouts, thick teeth, a