Methuselah has become famous for not only her advanced age, but a charming personality and a puppy-like love of belly rubs.
. The new age detection method used to estimate Methyselah’s age only uses a small tissue sample from a fin clip and the team believed that this method can be applied to other threatened species, without impacting threatened populations or the animal’s health.
The DNA analysis for this new estimate was led by Ben Mayne of Australia’s Commonwealth Scientific and Industrial Research Organisation and David T. Roberts of Australian water authority Seqwater. Their upcoming study included Methuselah, two other lungfish belonging to the California Academy of Sciences , and 30 other lungfish from six institutions in Australia and the United States.
“For the first time since the Australian lungfish’s discovery in 1870, the DNA age clock we developed offers the ability to predict the maximum age of the species,”. “Accurately knowing the ages of fish in a population, including the maximum age, is vital for their management. This tells us just how long a species can survive and reproduce in the wild, which is critical for modeling population viability and reproductive potential for a species.
“Methuselah’s age was challenging to calculate as her age is beyond the currently calibrated clock. This means her actual age could conceivably be over 100, placing her in the rare club of fish centenarians. While her age prediction will improve over time, she will always live beyond the calibrated age clock, as no other lungfish we know is older than Methuselah,”
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