Jonathan the tortoise celebrated his 190th birthday as he extends his run as the longest-living land animal in the world. .

Now notching 190 years on Earth, Jonathan is 48 inches long, the same size as when he arrived at the island.

His species of tortoise reaches full maturity by 50, providing the best estimate for his age, even though some naturalists believe he could be even older. .

Locals speculated as to why Jonathan has lived so long, exceeding the expected life of his breed, the Seychelles Giant tortoise, which is 150 years old. .

Jonathan, a Seychelles giant tortoise, believed to be the oldest reptile living on Earth, crawls around the yard of the Plantation House, the United Kingdom Governor official residence, where he has lived since 1882 when he arrived at the island. .

Jonathan, a Seychelles giant tortoise, believed to be the oldest reptile living on Earth with an alleged age of 185 years, crawls through the lawn of the Plantation House, the United Kingdom Governor official residence on October 20, 2017, in Saint Helena, a British Overseas Territory in the South Atlantic Ocean. 

Estimated to have been born in 1832, Jonathan has lived most of his life at the governor’s plantation house, according to the island’s website, which adds that Jonathan could arguably serve as a national symbol for the island

Jonathan, a Seychelles giant tortoise, believed to be the oldest reptile living on earth with, at the alleged age of 185 years on October 20, 2017 in Saint Helena. 

Jonathan last year surpassed the previous record-holder for oldest living land animal, a Madagascar tortoise named Tu’I Malila, who was gifted to the Tonga royal family in 1777 and died in 1965 at the age of 188 years old, according to Smithsonian magazine