From Spain to Japan, experiments have repeatedly shown a left-turn bias, but exact mechanic ‘is still an open question’

“I’m not an ambi-turner,” laments Derek Zoolander in the eponymous noughties satire about the world’s hottest male model and his rare catwalk hangup. “It’s a problem I’ve had since I was a baby … I can’t turn left.”

Now, research suggests that the fashionista’s career-threatening quirk was even more unusual than previously thought. Tests reveal that when people are ambling about, they have a natural tendency to turn to the left and walk in an anticlockwise direction.