The lion’s mane jellyfish is one of the largest jellyfish species in the world, with tentacles that can stretch over 100 feet (30 meters) in length. Found in cold waters of the northern Atlantic and Arctic oceans, this jellyfish gets its name from the reddish-brown tentacles that resemble a lion’s mane.
Despite their size, lion’s mane jellyfish feed primarily on small plankton, fish, and other jellyfish, capturing their prey with their long, stinging tentacles. These jellyfish are also bioluminescent, creating a mesmerizing glow in the dark depths of the ocean.
While they pose little threat to humans, their sting can cause irritation. As an essential part of the marine food chain, they provide sustenance for predators like sea turtles and ocean sunfish. Understanding their role in the ecosystem is vital to appreciating the balance of marine life.