Marine Turtles

One of the predators of jellyfish that eat jellyfish is the marine turtle, which can grow to a height of 6 to 9 feet. The sea turtle's hard shell is what allows it to successfully catch jellyfish. Most people cannot penetrate it, therefore the jellyfish cannot sting them as they normally do. In the eyes of sea jellies, the sea turtle appears unbeatable due to its protective shell and well-developed eyes.

While most sea turtles eat jellyfish, the leatherback sea turtle is by far the most fervent jellyfish predator. It might weigh anywhere from 200 to 750 kilos as the largest marine turtle. The leatherback sea turtle controls the jellyfish population because it favors sea jellies.

Six additional species besides the leatherback sea turtle may also feed on jellyfish. They are the green sea turtle, loggerhead sea turtle, flatback sea turtle, hawksbill sea turtle, hawksbill ridley, and olive ridley sea turtle. In fact, some species have evolved thick throat spikes that hold jellyfish in place. This is another factor contributing to the threat posed by plastic waste to these sensitive animals.