Claims about genuine age of Bobi, world’s oldest dog, to be investigated

Guiness World Records to look into claims after scepticism over whether the Portuguese mastiff really lived to be 31

The death of Bobi the Portuguese mastiff at 31 was history-making - no dog before had ever reached such a grand old age.

But awe soon turned into scepticism, as vets wondered whether it was biologically possible for a dog to live for the equivalent of 200 human years.