How do you calculate a dog’s true age?

It is often said that the age of dogs can be better understood by multiplying their age, in human years, by seven. But is that really true?

It's often said that one dog year equals seven human years. But is it true? Tim Harford and Ben Carter unveil the More or Less Dogulator.
Plus, the remains of the English King Richard III have recently been dug up in a car park in a town called Leicester. He died in the fifteenth Century War of the Roses. And an argument has broken out over where those remains should be properly buried – at the moment, the plan is to inter them in Leicester Cathedral.
But 15 distant relatives of Richard III have started legal proceedings in the High Court, saying the king should be buried in York Minster – and that by not taking their wishes into account the government is ignoring their right to respect for family life, a breach of article 8 of the European Convention on Human Rights.
Some reporting has implied that the famous 15 are almost the only descendants of Richard III who exist. But mathematician Rob Eastaway figures out how many other distant relatives of Richard III might actually be out there.

Available now

9 minutes


Download this programme

Subscribe to this programme or download individual episodes.