The world’s oldest dog recently celebrated his 31st birthday, according to the Guinness Book of World Records.

Bobi, a purebred Rafeiro do Alentejo, a breed of Portuguese dog, celebrated during a party Saturday at his home in the rural Portuguese village of Conqueiros, where has lived his entire life.

More than 100 people attended the “very traditional” Portuguese party, owner Leonel Costa said.

Local meats and fish were served to up to 100 guests, with extra for Bobi, who only eats human food. A dance troupe also performed with Bobi participating in one of their routines.

Costa has owned several old-aged dogs in the past, including Bobi’s mother, Gira, who lived to the age of 18. However, Costa said he never imagined any of his dogs would reach their 30s.

“We see situations like this as a normal result of the life that they have, but Bobi is one of a kind,” Costa said.

One of the biggest contributing factors to Bobi’s longevity is the “calm, peaceful environment” in which he lives, according to Costa.