Impact momentum against clamping force for mouse and rat traps.

Mouse trap types (n = 23) are represented by circles and rat trap types (n = 17) by triangles or squares. Each point represents a different trap type and is the mean of five measurements on one trap. [The raw data from which these were calculated are shown in Figure S6.] Points marked Ma-f (labelled blue) and Ra-f (labelled red) are trap types in the mouse and rat replicated sets respectively, with features shown in Table 1.