Golden Jellyfish
Even though jellyfish typically float around aimlessly in the ocean, the golden jellyfish in Palau, in the famous Jellyfish Lake, perform not a yearly migration but a daily one. They follow the sun across the sky. Every morning, they collect on the western shore of the lake and move horizontally across the lake as the sun moves across the sky.
Anemones are its predators, and they stop before the shadows where the anemone lurk. They then make the trip back to where they began in the early afternoon. They move by pumping water through their bells, using jet propulsion to make their way across the water. Because sunlight is so plentiful on the island, they rely heavily on it. The sunlight nourishes their tissues (National Geographic).