Methuselah, the Australian Lungfish residing at Steinhart Aquarium in California, has been an iconic figure for her impressive age and delightful personality. Previously estimated to be 84 years old, recent DNA analysis suggests she could be even older, potentially surpassing 100 years of age, with an age range of 83-101 years.
Methuselah, a 1.2-meter-long (4 feet) fish weighing 11 kilograms (25 pounds), hails from Southeastern Queensland, Australia. She possesses a unique adaptation – a functional lung, allowing her to supplement her oxygen intake when needed.
Her journey to the United States began in 1938 when she arrived in San Francisco from Australia. However, her exact age remained a mystery until now.
Dr. Ben Mayne of CSIRO and Dr. David T. Roberts of Seqwater led the DNA analysis, utilizing a non-invasive method based on DNA methylation. By measuring how methyl groups accumulate on DNA over time, the scientists estimated Methuselah’s age with a focus on protecting endangered species like the Australian Lungfish.
Image Credit: Gayle Laird, California Academy of Sciences.
The research offers valuable insights into the maximum longevity of this species, aiding in conservation efforts and population management. Methuselah serves as an ambassador for her kind, educating and inspiring visitors from around the world while contributing to our understanding of biodiversity and species preservation.
Image Credit: Gayle Laird, California Academy of Sciences.
Despite her age, Methuselah has a gentle and mellow disposition, earning her the nickname “underwater puppy.” She enjoys belly rubs and fresh figs, showcasing her distinctive tastes. With her potentially centenarian status, Methuselah stands as a testament to the wonders of aquatic life and the importance of caring for our planet’s unique species.