The Fascinating World of Jellyfish: Why Are They Clear?

Jellyfish are aquatic animals that drift with the ocean currents, using their clear, jelly-like bodies to catch food with tentacles hanging down. Lacking a heart, brain, or bones, jellyfish propel themselves by pumping water through their bodies. With around 20 species, these mesmerizing creatures play a crucial role in ocean ecosystems but can also deliver a painful sting if encountered.