This is only the second time the species has been recorded while alive. “I thought it was A.I.,” says fish biologist Kory ...

There are about 200 documented species of jellyfish pulsing their way through the world's waters. Most range from the size of your belly button to the size of a car tire.

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These elusive deep-sea creatures have a 3.3-foot-wide (1 meter) bell and four ribbon-like arms that grow up to 33 feet (10 m) long ... Unlike other jellyfish, giant phantom jellies don't have ...

Has a 4-foot bell body and 30-foot tentacles, creating a surreal and rare deep-sea sight. Jellyfish with stinging tentacles and bioluminescent abilities, glowing in the dark underwater. Colorful sea ...

On 26th January 2025, a team of researchers off the Canary Islands made an extraordinary discovery: a black seadevil ...

What looks like a spider but isn’t one, lives underwater and breathes through its legs? That would be the mysterious sea ...

Like a deep-sea modern dancer, a rarely seen animal undulates ... Schmidt Ocean Institute shared extraordinary footage of a phantom jelly seen swimming in Costa Rican waters on Monday.

An curved arrow pointing right. On a recent expedition in the Mariana Trench, NOAA's Okeanos Explorer team spotted this beautiful new jellyfish. Produced by Grace Raver Footage courtesy of NOAA ...

Researchers crowded around to look at the footage. They suspected that the animal, which spanned an estimated 10 to 12 feet long and had ... glow that deep-sea jellyfish emit as a sort of ...