Figure 2. Foraging behavior is suppressed during swimming. (A) Worms crawling on land and swimming in water were filmed and digitized using a custom algorithm. This allowed us to obtain the angular excursions in the dorsal-ventral plane for different points along their body. Foraging excursions in the left-right dimension could not be recorded. (B) While the majority of worms forage while they crawl on land, most cease foraging as they begin to swim in water. (C) Examples of angular excursions for three points along the body of a worm (A) showing the foraging behavior during crawling and not swimming (arrowheads).