Fig. 3: Boxplots representing the differences in
tooth length (top), mean angle (middle) and max angle (bottom) depending
on feeding ecological factors. First column: differences related
to the main mechanical challenge; second column: prey hardness and third
column: foraging substrate. Statistically significant differences are
indicated by *. Groups in the same bracket are not significantly
different but are different from groups with the asterisk (e.g., mean
angle is different between hard and slippery, and long and slippery). ≈
indicates nearly significant result.