Researchers Wang and Thompson hypothesize that certain corvid birds plan for the future, caching food in locations and quantities that correspond to anticipated future need, rather than simply responding to present hunger.
Which experimental finding, if true, would most strongly support Wang and Thompson's hypothesis?
- A
Birds cached more food when they were hungry than when they were full.
- B
Birds occasionally retrieved cached food and ate it later the same day.
- C
Birds preferred to cache food in dark, sheltered locations.
- Dcheck_circle
Birds that had been fed to satiety still cached more food in compartments where they had previously experienced hunger.
Explanation
A is critical: caching while sated, in locations linked to anticipated hunger, isolates planning from immediate need. B reflects present hunger driving caching. C and D are tangential.