Pies: The oldest dog on record – a Queensland Heeler named Bluey – was 29 years, 5 months old

Evidence: 34 • authority: 72

Evidence: 34 • authority: 72

Bobi (Portuguese pronunciation: [bɔˈβi], 11 May 1992 – 21 October 2023) was a male purebred Rafeiro do Alentejo dog cared for by Leonel Costa of Conqueiros, Leiria, Portugal. Bobi was claimed by his caretaker to be the oldest dog to ever live and the first dog on record to reach 30 years. On 2 February 2023, Bobi was certified by Guinness World Records as the oldest living dog, along with being the oldest dog on record to ever live. However, after veterinarians became suspicious of his real age, an investigation was pursued. Once his records were revoked, he was stripped of the title. Bobi died on 21 October 2023, reportedly aged 31 years and 163 days.

Evidence: 34 • authority: 72

Bluey (7 June 1910 – 14 November 1939) was a female Australian Cattle Dog owned by Les and Rosalie Hall of Rochester, Victoria. She holds the Guinness World Record as the oldest verified dog to have ever lived. The record was briefly disputed by Bobi, but Bobi's certification was revoked by Guinness due to the lacking evidence, after veterinarians came forward challenging Bobi's claimed age. Additionally, Bluey's title was also challenged by many other dogs including Max, Chilla, Maggie, and Bella, though they were never verified.

Evidence: 25 • authority: 72

This is a list of the longest-living biological organisms: the individuals or clones of a species with the longest natural maximum life spans. For a given species, such a designation may include: The oldest known individual(s) that are currently alive, with verified ages. Verified individual record holders, such as the longest-lived human, Jeanne Calment, or the longest-lived domestic cat, Creme Puff. The definition of "longest-living" used in this article considers only the observed or estimated length of an individual organism's natural lifespan – that is, the duration of time between its birth or conception (or the earliest emergence of its identity as an individual organism) and its dea…

Evidence: 25 • authority: 88

Evidence: 25 • authority: 80

Evidence: 25 • authority: 80

Evidence: — • authority: 38