We found more jellyfish being born in our lab this week! Rebecca Helm, a Dunn Lab graduate student, left a couple of bowls of salt water and hydroids out on the table overnight, instead of the ...

The Missouri Department of Conservation reports an invasive species of jellyfish from China can be found in Missouri’s lakes, reservoirs, and other freshwater habitats. An invasive species of ...

Immortal jellyfish (Turritopsis dohrnii) are smaller than the nail on your pinky finger. Ian Gavan / Getty Images In oceans across the globe, a tiny jellyfish species—smaller than the nail on your ...

In the Mediterranean, researchers have studied a jellyfish that bends the rules of aging. The jellyfish is called Turritopsis dohrnii. It is no bigger than a fingernail, yet it can revert from its ...

As a lake researcher, I have in recent years had quite a few people ask me whether jellyfish really do live in lakes. Some people think they are seeing things, or that their friends or family are.

Jellyfish clone themselves by morphing into a stack of squirming jellyfish pancakes. When grown-up jellyfish love each other very much, they make huge numbers of teeny-tiny potato-shaped larvae. Those ...

Jellyfish start out in a stationary polyp stage and later develop into jellyfish, when environmental conditions are right. The Morbakka virulenta, pictured here, is beginning to develop into a ...