Jellyfish are among the oldest animals on Earth, found in all the world's oceans and serve as valuable model systems for ...

In 2006, beaches in Italy and Spain were closed because of a bloom of jellyfish known as mauve stingers. In 2013 a Swedish nuclear plant temporarily shut down because moon jellies were blocking ...

The moon jellyfish, Aurelia aurita, is the most common jellyfish ... The polyp stage of their lives is usually more conspicuous than the small adult jellies. However, not all hydrozoans are considered ...

Moon jellyfish swarm in the cool autumnal waters of a fjord outside Tromsø in northern Norway illuminated by the aurora borealis. Sheltering his equipment in a self-made waterproof housing, Audun used ...

The first room features a giant orb covered in rushing water and filled with moon jellyfish. Nearby, kids were crouching to look into a clear tube tank and even adults were sliding on their backs ...