Ghost of a flea

Dr Matsumi Suzuki, who generally uses his skills to help with criminal investigations, measured the face and hands of Leonardo da Vinci's famous 16th century portrait to estimate her height at 168 cm and create a model of her skull.

"Once we have that, we can create a voice very similar to that of the person concerned," Suzuki told Reuters in an interview at his Tokyo office last week. "We have recreated the voices of a lot of famous people that were very close to the real thing and have been used in film dubbing."