Little Xavier Powell has been dubbed the world's oldest baby after he was born from sperm that was harvested nearly 23 years ago.
The baby boy recently received the title from the Guinness World Book of Records, which said that he was conceived at a fertility group in Queensland, Australia, on Sept 24 last year.
According to The Mirror UK, Xavier was born on June 17 this year to Australian couple Alex Powell and Vi Nguyen via in-vitro fertilisation (IVF).
When he was 15 years old, Mr Powell was diagnosed with a rare type of cancer that affects the lymphatic system - Hodgkin's lymphoma.
Although he was only a teenager at the time, his stepmother had advised him to freeze his sperm before undergoing chemotherapy.
Sperm cells can be easily damaged by chemotherapy as it kills cells that divide rapidly, an article by the American Cancer Society explains.
The treatment may also reduce the number of sperm cells, reduce their quality, and cause the cancer patient to suffer from infertility.
After what Mr Powell described as "an awkward session" at the sperm bank, a sample of his semen remained frozen in the facility for over two decades, foreign media reports.