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Articles on Evolution

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Necklaces and earrings in traditional Kenyan cultures denote messages about marriage and childbearing. from www.shutterstock.com

How ‘bling’ makes us human

Why is jewellery so important to the story of human evolution? Because it provides a public message – even to people we don’t know.
Big History may provide a basis for drawing different human cultures closer together. NASA

How ‘Big History’ can save the world

At a time when nationalism and religious ideologies are dividing humanity, it is important to find unifying perspectives on our ‘origin story.’
Birds don’t fly across wide Amazonian rivers like the Rio Negro. Marcos Amend www.marcosamend.com (for use with this article only)

Bird DNA helps explain Amazonian rivers’ role in evolution

Rivers are natural boundaries for evolving populations. But scientists don’t agree whether they create new species or just help maintain them. Research using birds’ molecular clocks provides some answers.
Euphanerops, a primitive jawless fish from the World Heritage site at Miguasha, Quebec, which has now been found to have paired hind limb structures and copulatory sex organs. François Miville-Deschênes with permission

The origins of those sexual organs: a fishy tale much more primitive than we thought

Sexual organs similar to what we see in sharks and rays today appeared many millions of years ago in much more primitive ancient fishes than was previously thought.

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