Curly hair may have evolved to protect early humans from the sun

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Curly hair may have evolved to protect early humans from the sun
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In the first study to look at the evolution of hair types, researchers found tightly curled hair shields the head from the sun

Feedback ponders reports that a nuclear submarine was fixed with everyone’s favourite adhesive, while also detailing the latest thinking on the life-saving properties of coffee and the squeaky windscreen wiper problemA seed carrier made from wood screws itself into the ground when exposed to water.

It could be useful for projects to replant forests from the air using dronesAn F-16 fighter jet controlled by AI has taken off, taken part in aerial fights against other aircraft and landed without human helpModern humans who have inherited genetic variants related to circadian rhythms from extinct hominins are more likely to be morning people

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