Meet Turritopsis dohrnii, a tiny jellyfish that can revert to an earlier stage of its life cycle when times are tough, offering insights into how to reverse aging.

Find out more about the famous residents of Palau's Jellyfish Lake. Learn more about their remarkable daily migration.

The mythical Hydra may have been able to grow one of its many heads back every time it suffered a decapitation, but there are actual creatures capable of regenerating parts of their bodies bitten off ...

(WYTV) – Before there were dinosaurs, before trees, before fungus, jellyfish floated in our oceans. They’ve been around for 500 million years. Their bodies are 95% to 98% water. They have no brains, ...

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.

Even without a central brain, jellyfish can learn from past experiences like humans, mice, and flies, scientists report for the first time. They trained Caribbean box jellyfish (Tripedalia cystophora) ...

One of the biggest mysteries of evolution is how species first developed complex vision. Jellyfish are helping scientists solve this puzzle, as the group has independently evolved eyes at least nine ...

Most people think the great white shark is the ocean predator they should fear the most. However, this type of jellyfish, statistically speaking, is much deadlier. Sharks are probably the animal that ...

Ding! The courier hands me an unassuming brown box with "live animals" plastered on the side. I begin carefully unboxing. The cardboard exterior gives way to a white polystyrene clamshell, cloistering ...