Learn more about the gene linked to the evolutionary loss of human tails, and how, in rare cases, some people are still born ...

Ever thought why don’t humans have tails? It certainly is one of the marathon questions that scientists themselves have been racking their brains about for years. Whereas most of the other species ...

TOKYO (Reuters) - Millions of years after the ancestors of humans evolved to lose their tails, a research team at Japan’s Keio University have built a robotic one they say could help unsteady elderly ...