Fish Facts: How old is that fish? You are a fish biologist (a scientist who studies fish) working for the Division of Wildlife. You just caught this largemouth bass in your net and need to gather some facts: 1: Print this page. 2. Measure the length of the fish in both inches and millimeters. 3: Record the tag number of the fish. 4: Estimate the age of the fish by counting the number of growth rings on one of its scales. (Hint: fish scales have growth rings just like a tree trunk.) Once you’ve finished, you may color your fish before placing it back in the lake. What color is a largemouth bass? Answer   Going to School: Groups of fish are called “schools.” You can make your own school of bass by tracing this fish several times or putting it on a copier. Cut out the bass copies and hang them on a wall. You might even want to create your own lake for the school of fish to swim in! Return to WildKids Menu