My newborn son Billy, four billion years old today

My son, Billy, was born three weeks and two days ago. People say he looks like me, but he very obviously looks like a baby, or at a pinch Sir Winston Churchill; he sleeps, and feeds, and poos, and when he wants us to help in the process of one of those things, he cries….

Australopithecus sediba: can we stop calling it a ‘missing link?

The discovery of a possible ape-hominid transitional fossil, Australopithecus sediba, is of course incredibly interesting. It may be the earliest direct ancestor of modern humans yet discovered. It hints interestingly that humanity’s first steps – or, rather, first bipedal steps – in southern Africa rather than, as previously suspected, east Africa. It gives new and…