Ancient lake sturgeon may live over 400 years—females up to 427, males 90–279—shattering old assumptions and revealing why every one is vital for Great Lakes survival. Scientists ditched fin-ring counting for a new growth-based formula, proving these slow-reproducing giants need extreme conservation. With less than 1% of their original population left, hatchery releases and strict fishing limits are non-negotiable to save these ecosystem keystones.
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