Researchers have developed a non-invasive wearable sensor device that can measure seal body movements associated with diving behavior, providing insights into how seals prepare for diving. This device, called the Seal Accelerometer and Pressure Logger (SEAL), is a small, lightweight package attached to the fur of a seal. It records acceleration and pressure data, allowing scientists to study the dynamics of seal diving behavior and energy expenditure. The findings from this study can contribute to the understanding of how seals, and other marine mammals, adapt and thrive in the ocean environment.