The 1:1 ratio results from the way the X and Y chromosomes are doled out in sperm and eggs. We know that boys and girls are produced in much the same frequency. But how – and why – is this 1:1 ...

Tuesday was the final day of Washington, D.C.-based programming for Sputnik — with programs produced and made by journalists from stateside Sputnik studios coming to an end. As heard by RBR ...