A surprising technique has helped scientists observe how Earth’s oceans are changing, and it’s not using specialized robots or artificial intelligence. It’s tagging seals.
Several species of seals live around and on Antarctica and regularly dive more than 100 meters in search of their next meal. These seals are experts at swimming through the vigorous ocean currents that make up the Southern Ocean. Their tolerance for deep waters and ability to navigate rough currents make these adventurous creatures the perfect research assistants to help oceanographers like my colleagues and me study the Southern Ocean.
