It’s not unusual for jellyfish to wash ashore along the Texas coast. More often than not, they’re harmless moon jellies — ...

Go behind the scenes at the Greensboro Science Center to meet moon jellyfish and learn surprising facts from animal care specialist Elizabeth Hincker.

Scientists exploring the deep waters off Argentina's coast captured footage of a giant phantom jellyfish, a rarely seen ...

In jellyfish and sea anemones, neurons accumulate DNA damage while animals are awake and repair that damage during sleep.

During a dive off Argentina, scientists documented a rare jellyfish discovered a little over a century ago and seldom seen since, as well as the fish that keep it company.

A team of students at Tohoku University in northeastern Japan discovered a new species purely by happenstance.

The UFOs reportedly appeared between 6:40 p.m. and 7:10 p.m. local time on Feb. 2. While the witnesses were unable to capture the phenomenon on camera, they were so bewildered by what they saw that ...

Arteries carry oxygenated blood away from your heart. They have thick walls and a muscular layer that keeps your blood moving. Arteries can be as wide as a nickel (about two centimeters). They are the ...

When I was 6 years old, my family went on vacation to a beach in North Carolina. While I was swimming, there was a massive jellyfish bloom. Small, translucent ...

An upside-down jellyfish drifts in a shallow lagoon, rhythmically contracting its translucent bell. By night that beat drops ...

Sandringham Beach in Melbourne quickly closed when the swarm of jellyfish appeared, despite it not being poisonous. However, the jellyfish has long tentacles, which can cause an extremely painful ...