Jellyfish have drifted along on ocean currents for millions of years, even before dinosaurs lived on the Earth
The jellylike creatures pulse along on ocean currents and are abundant in cold and warm ocean water, in deep water, and along coastlines
But despite their name, jellyfish aren't actually fish-they're invertebrates, or animals with no backbones
Jellyfish have tiny stinging cells in their tentacles to stun or paralyze their prey before they eat them
Some jellyfish are clear, but others are in vibrant colors such as pink, yellow, blue, and purple, and often are luminescent
The Chinese have fished jellyfish for 1,700 years
Jellyfish
Jellyfish
Jellyfish, jellyfish, jellyfish, jellyfish, jellyfish, jellyfish
Jellyfish are probably some of the most unusual and mysterious creatures that you'll ever encounter
With their gelatinous bodies and dangling tentacles, they look more like something from a horror movie than a real animal
But if you can get past the weirdness - and the fact that getting too close to one results in a nasty sting - you'll discover that jellyfish are pretty fascinating
They've been around for more than 650 million years, and there are thousands of different species
Jellyfish
Jellyfish