How is it possible that some Caucasian people have very curly hair

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Is curly hair common in Mexico? - Quora

Why do some Arabs have African features? I mean the curly hair and features. - Quora

Why do people consider Latinos who have 3b curly hair and deep tan skin Afro-Latin? - Quora

Why do Asians and Native Americans live in hot climate regions but don't have curly hair like sub-Saharan Africans? - Quora

Why do some Italian people have very curly hair, while other Italian people can only have straight hair? - Quora

Does curly hair in Caucasians most likely originate as a holdover from Neanderthal or African ancestry or as an independent mutation? - Quora

Does having curly hair denote an African ancestry? - Quora

Are red, curly headed people rare? - Quora

Do most Indonesians have curly hair? Why or why not? - Quora

Can white people have thick/coarse hair without it indicating African admixture? - Quora

Are red, curly headed people rare? - Quora

Is curly hair considered an African hair or a Middle Eastern hair? - Quora

Is it possible for a person to have naturally curly hair (kinky/extremely curly type) without any African ancestry whatsoever? - Quora

Why do Polynesians have curly hair? - Quora