Six runners - with a combined age of 465 - have taken part in every London Marathon since it was first launched in March 1981 ...

Bellaire, Michigan is the kind of place that makes you wonder if there’s a secret society dedicated to keeping it quiet.

Normal human colour vision depends on three types of cone photoreceptors (short-, medium- and long-wavelength sensitive — S, M and L) that have different but overlapping spectral sensitivities. Genes ...