100 guests and dancing: The world's oldest dog Bobi celebrated his 31st birthday

The world's oldest living dog celebrated his 31st birthday in May. Bobi, a purebred Rafeiro do Alentejo, was declared the world’s oldest dog by Guinness World Records back in February, CNN reported.

This is a breed that is often used to guard property and livestock. These dogs usually live between 12 and 14 years, but Bobi has lived for double his life.

Bobi’s family planned a Saturday birthday party at his home in Conqueiros, a village in southern Portugal. More than 100 guests and even a dance troupe came to the birthday boy and his family in Portugal to celebrate.

His owner, Leonel Costa, told that it was a "very traditional" Portuguese party with treats, songs and dances. After all, Bobi has been enjoying a lot of attention since being named the world’s oldest dog. Guests were served local meat and fish, and there was a separate table for Bobi, who eats only human food.

A dance group also performed, and Bobby actually participated in one of the dances.

"We’ve had a lot of journalists and people come from all over the world to take a picture with Bobi," the owner said.

"There were a lot of pictures taken and he had to get up and down many times," Leonel Costa added. "It wasn’t easy for him."

However, Costa noticed that the dog was in good health and recently received a check-up due to Costa’s concerns about the stress of frequent visitors.

"Bobi is special because looking at him is like remembering the people who were part of our family and unfortunately are no longer here, like my father, my brother, or my grandparents who have already left this world," he said.

Bobi's owner attributes the dog's long life to his diet of unseasoned human food, his freedom to roam the forests and farmland near his home, and the peaceful countryside he grew up in.

In addition to being the oldest dog currently living, Bobi is also the oldest dog ever recorded, according to the Guinness World Records.

Leonel Costa was just 8 years old when his canine companion was born.

Bobi’s age has been confirmed by SIAC, a pet database authorized by the Portuguese government and National Union of Veterinarians. The Veterinary Medical Service of the Municipality of Leiria also confirmed Bobi's date of birth, according to GWR.

The previous record holder for life expectancy of all time was dog Bluey from Australia, who in 1939 turned 29 years old.