You know it’s fresh but how old is that sea bass you just bought from the fish market? As it turns out, there is a simple technique that scientists use to tell the age of each and every fish.
You see, the age of fish can be determined the same way as trees. Fish scales have one scale growth for each year of age.
The way scales grow is by adding layers to the outside edge and because fish are cold-blooded and grow very little in wintertime, the year mark is given by a thicker ring that is formed each year. Therefore, by just looking at one simple scale, we can determine the age of the fish. (the article continues after the ad)
Here’s the scale of a 4 year old bass:
How cool is that?
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Photo: Archbob / Pixabay
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