Adwaita, an Aldabra giant tortoise that died in 2006 in the Alipore Zoological Gardens of Kolkata, India, is believed to have lived to the age of 255 years, but this has not been confirmed.

[11] BBC Radio featured Jonathan in an episode of From Our Own Correspondent in March 2014 after ocean rower Sally Kettle visited Saint Helena.

[13] Due to his advanced age, Jonathan spends his days doing almost everything with his mate Frederik, another male tortoise he was introduced to in 1991, including eating, sleeping and having sex.

[14] To mark Jonathan's supposed 190th birthday in February 2022, island officials planned to make a series of commemorative stamps and visitors received a certificate featuring a photograph of his first known footprint.

[6] On 4 December 2022, local residents arranged three days of Jonathan's birthday celebration, presenting a cake made entirely from his favourite foods.