Animal longevity remains a puzzle to biologists. Some researchers have found that smaller individuals within a species tend to live longer than their bigger brethren. This may be due to the abnormal cell growth that accompanies both larger body size and the risk of cancer.
The longest-lived animal ever found was a quahog clam scooped from the waters off Iceland. The tiny mollusk was estimated to be 400 years old.
At 39.08 pounds (17.73 kilograms), Liebman's fish may also set a record for the largest rockfish ever caught.
"I knew it was abnormally big, [but I] didn't know it was a record until on the way back - we looked in the Alaska guidebook that was on the boat," Liebman told the Sentinel.
He plans to have the fish mounted, so he can continue to tell the fish story that he's already been "getting a lot of mileage" out of, according to the Sentinel.
Article originally appeared on LiveScience.
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