Explore and protect ocean ecosystems
Marine biologists study ocean organisms and ecosystems — from microscopic plankton to massive whales. They conduct fieldwork, analyze data, and drive conservation efforts to protect marine life.
You dive to monitor a coral reef, tag sea turtles for migration tracking, analyze water samples back in the lab, and write a report on ecosystem health for a conservation agency. The ocean is your office.
Start the free Marine Biologist Career Explorer — short videos, quick quiz questions and a certificate.