Although many chimpanzees live in environments containing oil palm nuts, members of only a few populations use stones to crack open the nuts. The likely explanation is that
A)the behavioural difference is caused by genetic differences between populations.
B)members of different populations have different nutritional requirements.
C)the cultural tradition of using stones to crack nuts has arisen in only some populations.
D)members of different populations differ in learning ability.
E)members of different populations differ in manual dexterity.

Question

Quizplus · Accepted Answer

The fact that only some populations of chimpanzees use stones to crack open oil palm nuts suggests that this behaviour is not genetically determined, but rather a cultural tradition that has arisen within certain groups. This explanation is supported by observations of other cultural behaviours among chimpanzees, such as the use of tools for termite fishing or ant dipping, which are also only practiced by certain populations.

Although Many Chimpanzees Live in Environments Containing Oil Palm Nuts