Fig. 1

The experimental setup and statistical properties of the search patterns. (A) Monkey Vin in a floor foraging session in the open arena of the Exploration Room. (B) The grid of piles in the arena and an example of the hidden localized abundance map. The color intensity indicates the number of reward items hidden in a single pile, which was always 3 in the center and 1 at the outer margin of the circular disk, and zero elsewhere. (C) Example foraging paths from each monkey (session #7 of Vin, #5 of Luk, #3 of Hum, and #5 of Nat). We let the animals stay in the room until they lost interest in foraging and spent more than one minute waiting in front of the exit gate or roaming without foraging. D) Raster of foraging outcomes in each session. Each pixel indicates the number of rewards originally placed in the visited pile. The first successful pile search is marked with a triangle. The probability distributions of the first successful pile search for each monkey (black lines) overlap the rasters.