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@explainingbytes on Instagram: "Scientists use fish as “living sensors” to monitor water quality through a process called biological monitoring or biomonitoring. This method relies on the fact that fish are highly sensitive to changes in their environment, such as the presence of heavy metals, pesticides, or industrial chemicals. By placing specific species like the Bluegill or Fathead Minnow into automated monitoring systems, researchers can track their physiological and behavioral responses in