Scientists have figured out how to determine the age of a lobster. Much like a tree, you count it's rings. Raouf Kilada, a research associate at the University of New Brunswick was the lead author of a scientific paper documenting the process.

Kilada and five other Canadian researchers took a closer look at lobsters, snow crabs, northern shrimp and sculptured shrimp and they found that growth rings could be found in the eyestalk of lobsters, crabs and shrimp. In lobsters and crabs, the rings were also found in 'gastric mills,' parts of the stomach with tree-like structures used to grind up food.

The paper was published in last month's Canadian Journal of Fisheries and Aquatic Sciences. Kilada estimates that there are lobsters 60 or 70 years old living in the wild.

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