Figure 1.

Representative images of C. elegans as analyzed in the present study. The panels show unprocessed frames of videos of wild type (N2) C. elegans on NGM-agar plates with an E. coli lawn (A) or with no lawn (B). The insets show individual worms (indicated by arrows) at higher magnification. The slightly uneven illumination of the panels stems from the fact that in the experimental setup of the present study, the field-of-view was placed offset from the middle of the agar plates. However, this had no impact on unequivocal identification and tracking of the worms on the plates (evaluation data not shown).