The male cuttlefish in the chapter-opening photo can rapidly chan...

Question

The male cuttlefish in the chapter-opening photo can rapidly change their skin colors (under nerve control) to flash warning patterns to rivals. Predict the proximate and ultimate causes of this behavior.

Accepted Answer

Hello everyone and welcome to today's video. So the mail fiddler crab has an enlarged major claw. What is the primary function of these specialized claw? Well, usually in females that have very small claws, they're going to be using this clause for feeding. However, however, males develop these larger specialize claw, and the main reason they do this is because this claw becomes easier to see, which means that females are going to be able to detect these males a lot easier. So the main function of why they do this is to attract females. But also this larger specialized claw becomes very strong and so crabs can also use it in order to fight other males or to the rivals. Because of this, the correct answer choice is going to be answer choice to attract females and to the rivals. That's going to be the final answer to our question. And I really hope this video helped you.

The male cuttlefish in the chapter-opening photo can rapidly change their skin colors (under nerve control) to flash warning patterns to rivals. Predict the proximate and ultimate causes of this behavior.

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