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How do you figure out how old a fish is? Very carefully. Most fish have small​ bones in their inner ears​ called otoliths, made of calcium carbonate. They’re located in a fish’s inner ear and help with hearing and balance. As a fish grows, new layers of calcium carbonate are deposited in layers, much like the growth patterns seen in tree rings. We can count the growth rings to determine the fish’s age. Why not determine their age based on their size or weight? Like humans, fish stop growing at a
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How do you figure out how old a fish is? Very carefully. Most fish have small​ bones in their inner ears​ called otoliths, made of calcium carbonate. They’re located in a fish’s inner ear and help with hearing and balance. As a fish grows, new layers of calcium carbonate are deposited in layers, much like the growth patterns seen in tree rings. We can count the growth rings to determine the fish’s age. Why not determine their age based on their size or weight? Like humans, fish stop growing at a
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