Although many chimpanzee populations live in environments contain...

Question

Although many chimpanzee populations live in environments containing oil palm nuts, members of only a few populations use stones to crack open the nuts. The most likely explanation for this behavioral difference between populations is that
a. members of different populations differ in manual dexterity.
b. members of different populations have different nutritional requirements.
c. members of different populations differ in learning ability.
d. the use of stones to crack nuts has arisen and spread through social learning in only some populations.

Accepted Answer

Hi everyone. Welcome back. Here's the next question which the following poses a significant risk while foraging and has the potential to influence behavior. So foraging is a behavior where animals range um over distance to search for food. Uh It's a learned behavior and is modified over time and a cost benefit analysis. So in terms of the cost of foraging and the cost of foraging would be energy expenditure in terms of traveling over that period of time and risk. Um And the risk would be exposure to predation. And then the benefit of course would be access to a greater amount of food. So the animal has to tailor its foraging to maximize the benefit, the energy gain of more food and minimize the costs. So which is a significant risk while foraging. But as mentioned that that would be choice. A predation. The more territory they move over the more than moving around the more exposure to predators a foraging animal hats. It does have a potential to influence behavior because the animal will perhaps make its foraging over a shorter distance if the increased distances are causing the risk of predation to be greater than the energy gain from foraging. But let's just look through other answer choices. Choice be mating, mating doesn't pose a risk while foraging. Um An animal might roam around a territory looking for a mate but in the mating itself would be a benefit in terms of the potential to reproduce. So not our correct answer choice. C is learning. Um Learning would occur while foraging as the animal learns to optimize its foraging behavior. But it's not a risk. Learning would obviously be maximizing benefits, minimizing risk. So that would be a good thing. So we can eliminate choice C. And finally Choice. The imprinting imprinting is an innate behavior so it wouldn't be changing over time. Uh imprinting is a this innate behavior where an animal when it's born forms an attachment to the first object of encounters or experiences which should ideally be the parent, allowing it to be cared for by the parent, follow the parent and stay with the parent. Um But that's an innate behavior and not a risk of foraging. So we'll eliminate that. And again which the following poses a significant risk while foraging and has the potential to influence behavior. Choice. A predation. Hope to see you in the next video.

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