From red to blue, harmless to lethal, and microscopic to humongous, jellyfish come in all different shapes and sizes and are ...

Some jellyfish species carry venom strong enough to cause severe pain, heart complications, and nervous system disruption.

Mark Stephen and Rachel Stewart with stories from the great outdoors See more episodes Programme website Copyright 2026 BBC. All rights reserved. The BBC is not ...

TEXAS, USA — A couple of strange-looking jellyfish spotted on North Padre Island this week turned out to be Atlantic box jellyfish, according to researchers with the Harte Research Institute. Jace ...

Add Yahoo as a preferred source to see more of our stories on Google. Harte Research Institute A couple of strange-looking jellyfish spotted on North Padre Island this week turned out to be Atlantic ...

Box jellyfish get their name from their cube-shaped bell, with long tentacles trailing from each corner. When alive in the water, those tentacles can stretch several feet. "Unlike most jellyfish, they ...

A box jellyfish advisory has been issued this morning for Ala Moana Beach Park and Waikiki. An alert was also issued at about 12:40 p.m. today for Maili. Honolulu Ocean Safety lifeguards warned that ...

The box jellyfish possesses one of the fastest-acting venoms found in the animal kingdom. Its tentacles deliver toxins that can disrupt the heart, nervous system, and blood cells almost immediately.

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. By Alexa Robles-Gil In late ...

BUENOS AIRES, Argentina - A recent deep sea exploration off Argentina's coast revealed an incredible video of a giant jellyfish that can grow to be as large as a school bus. Video from the Schmidt ...

Get the latest on the science of healthy living in our weekly newsletter. Jason Krynicki will never forget how obesity made him a target for vicious bullying from the time he was little. Those ...