Al 'finprinting' IDs sharks

摘要

Great white sharks migrate over huge distances, making it tricky to track individuals through the seasons. Now, a project hopes to automate their identification from photographs of their fins. The technique, known as "finprinting", uses the unique contours of a shark's dorsal fin as a biometric - rather like a human fingerprint or iris. Researchers have scrutinised fins to identify sharks for years, sometimes using software to help, but the new project aims to make the whole process automatic.