From the sunlit surface to the dark depths, jellyfish inhabit every ocean on Earth. Learn about their adaptability to diverse marine environments.
Jellyfish have been around for over 500 million years, predating dinosaurs and even trees.
Despite their name, jellyfish are not fish but gelatinous zooplankton from the phylum Cnidaria.
They have specialized cells called nematocysts that deliver painful stings to capture prey and deter predators.
Jellyfish lack brains, hearts, and bones, yet they possess a nerve net that allows basic movements and responses.
Found in every ocean, from the surface to the deep sea, jellyfish thrive in diverse marine environments.
Some species can produce light through bioluminescence, creating beautiful glowing displays underwater.
Turritopsis dohrnii can revert to its juvenile form after reaching maturity, potentially giving it the ability to bypass death.
Overfishing and climate change can lead to jellyfish blooms, causing disruptions in marine ecosystems.
They mainly feed on small fish, plankton, and other marine organisms, using their tentacles to ensnare prey.
In some cultures, jellyfish are considered a delicacy and are dried, salted, or pickled for consumption.