Common Jellyfish

The common jellyfish, Aurelia aurita, is a translucent, bell-shaped cnidarian found in the north Atlantic and off Argentina's coast. Though it looks delicate, its stinging tentacles are harmless to people. Scientists recently discovered that what was once thought to be one worldwide species is actually many different kinds.

• Its bell can grow up to 40 cm wide, pulsing gently through the water
• Belongs to the Ulmaridae family, known as 'true jellyfish'
• Until 2020, scientists mistakenly grouped 28 species together as Aurelia aurita