Fig. 8 in Persistent Fontanelles in Rodent Skulls

Fig. 8. Results from an analysis of variance of elevation vs. prevalence of fenestrae for only Ctenomys from southern South America for samples that we studied greater than n=4. Elevation was coded in 500 m intervals, with elevation ''1'' less than 250 m and elevation 7 greater than or equal to 4000 m. A significant relationship between prevalence of fenestrae and altitude was detected in our analysis.