Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like ...

This book is composed of reflections and memories of the ensuing eighteen months, during which Freud completed two portraits: the oil painting Man in a Blue Scarf and an etching. Throughout the ...

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Stunning discoveries and fresh breakthroughs in DNA analysis are changing our understanding of our own evolution and offering a new picture of the "other humans" that our ancestors met across ...