Relationships between pupil size and firing rate were nonmonotonic in some cells.

A nonmonotonic doping behavior as a function of the composition is uncovered.

The force exerted by an emerging tube is a nonmonotonic function of its length.

We have excluded magnetic fields and vortex motion as the source of the nonmonotonic behavior.

We find that the recently predicted nonmonotonic, cusplike synchronization landscape manifests itself in the rate of convergence to the synchronous state.

This was paralleled by nonmonotonic and dose-specific DNA hypomethylation of genes that confer carcinogenic risk, with greatest hypomethylation at the lowest BPA doses.

The shape of the dose-response curves for reported effects varied with the end point and dosing regimen and were low-dose linear, threshold-appearing, or nonmonotonic.