RotD: 18th February - This week in records: Strongest natural material, oldest-ever crocodile in captivity, fastest hearse, most powerful rocket, most consecutive boy-girl births in one family, most Best Actor Oscar wins

The toughest stuff in nature, the amazing Josephine Baker and her elderly crocodile, the speediest hearse, the most powerful and useless rocket that failed to put a Russian on the Moon, mass pole-dancing, the most boy-girl-boy-girl births and the most wins of the Best Actor Academy Award - another joyously mixed bag from the team at Guinness World Records.