Overview

• Researchers observed orcas detaching, trimming and sharing bull kelp stalks in a behavior dubbed allokelping.
• Upgraded high-resolution drones deployed in 2024 provided the first detailed footage of this tool use in the Salish Sea.
• All three southern resident pods participated across both sexes and all age classes, with frequent sightings on most drone flights.
• Scientists believe the kelp’s antibacterial and anti-inflammatory properties support skin health and reinforce social bonds.
• With fewer than 80 individuals remaining, the practice highlights the distinct cultural traditions of a critically endangered population.