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Chickens show bouba/kiki effect, challenging human uniqueness
Newly hatched chicks, like humans, associate "bouba" with round shapes and "kiki" with spiky ones, showing this "bouba/kiki effect" is not unique to language-using animals.
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Newly hatched chicks, like humans, associate "bouba" with round shapes and "kiki" with spiky ones, showing this "bouba/kiki effect" is not unique to language-using animals.