The Box Jellyfish is a fascinating marine creature known for its cube-shaped body and long, trailing tentacles. Found mainly in the warm coastal waters of the Pacific and Indian Oceans, this jellyfish can be transparent or bluish in color. Its unique shape allows it to move quickly through the water, making it an efficient predator. Box jellyfish are notorious for their potent venom, which can cause severe pain and even be fatal to humans. Their tentacles contain thousands of tiny stinging cells called nematocysts, which they use to capture prey like small fish and plankton. Despite their dangerous reputation, they play an important role in the ocean ecosystem.