22. Leatherjacket Fish
Leatherjacket fish are known for their impressive spawning migrations, traveling long distances through the open ocean. Scientists believe these fish use prevailing ocean currents to help guide their journeys, and there’s growing evidence that they may also rely on geomagnetic cues for orientation. This combination allows leatherjackets to locate specific spawning grounds year after year, ensuring the continuation of their species. Source: Australian Museum