HealthThe night: Why they call it the graveyard shift Your mum was right: staying up past your bedtime is bad for you. Working "unnatural" hours puts your body through the wringer. Tiffany O'Callaghan reports Features
EarthPrimeval planet: What if humans had never existed? What was the planet like before Homo sapiens, and would it still be that way if we had never gone global? We rewind time, erase our ancestors, and hit play Features