A US doctor who has delivered 18,000 babies is still practising at 100.
Dr. Walter Watson - who has been an obstetrician for the past 63 years - is thought to be the oldest practising medic in the world.
He said: "There is nothing quite as amazing as witnessing the miracle of life. Trouble is once you've done several thousand they start blending in together."
Walter says he has no plans for retirement despite suffering from minor arthritis and diminished eyesight and hearing.
The pensioner also delivered Michel McDonough, his colleague at the hospital who is young enough to be his grandson.
Dr. McDonough said: "His work ethic is unsurpassed by anybody."
