You can quickly ruin a relaxing beach day by stepping on a marine animal washed up on shore. Watch out for these creatures if ...

T he most dangerous sea creatures in the world don't always have large teeth like great white sharks or weigh over 10 tons (9 metric tonnes) like the killer whale. The sea creatures that are a ...

A “highly venomous” sea snake that’s “potentially lethal to humans” was found on a popular surf beach in Hawaii in a rare ...

Evidence of that fact is everywhere, from bleached coral reefs to damaged food supplies, and now it might also be pushing venomous sea creatures like the yellow-bellied sea snake farther north ...

Social media users are reacting to the rare sighting of a black seadevil anglerfish that was spotted on the surface of the water near Tenerife island in Spain.

A live three-foot yellow-bellied venomous sea snake washed ashore Honoli’i Beach in Hawaii last week. Officials have since ...

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 ...

Tiny, highly venomous jellyfish stings 2 people in the ... but they also appear to help to protect smaller sea creatures. During an expedition in the Gulf of California, researchers from the ...

They can be distinguished by bright yellow markings on their undersides. “This type of sea snake can be more venomous than a cobra and potentially lethal to humans,” Board of Agriculture chair ...