Earlier this year, Michigan researchers analyzed lake sturgeon records spanning decades. 300 years later, their findings point to fish still living around the Great lakes for nearly 3 centuries

Some of the oldest creatures on Earth are not necessarily found in remote oceans or forests. The Great Lakes are home to lake sturgeon, an ancient freshwater species whose extraordinary lifespan may be much greater than scientists previously understood.

A new study published in the Journal of Fish Biology by researchers from the Michigan Department of Natural Resources and Michigan State University suggests that these fish may commonly reach almost 200 years, while some could be nearly 300 years. The discovery positions lake sturgeon among North America's most exceptionally long-lived freshwater fish and raises fresh questions regarding how scientists determine the ages of ancient aquatic species.