Figure 1.
Both the “dipping” and “straw-sucking” techniques entailed the same tool (straw-tube), the same target (juice), and exactly the same location (small hole).
Actually in the scene depicted in this photo, the chimpanzee thereafter retrieved the tube and licked its tip (“dipping”).
Table 1.
Switch in tube-use techniques from “dipping” to “straw-sucking”.