Scorpion fish are perchlike fish with large spiny heads and strong, sometimes venomous, fin spines. If you do get pricked by one of these things in the ocean, do you need to go to the emergency room?

Sea slugs use bold, bright colors under sunlight to warn predators of their toxic traits. These colors are easier for fish to ...

The Texas Parks and Wildlife Department (TPWD) recently spotted a fish with venomous spines hiding in ... because they inhabit and breed along sandy ocean bottoms, according to TPWD.

The venomous aquatic invader comes in four sub-species, two of which are currently found in the Mediterranean.

The flamboyant fish that is one of the deadliest sea animals is the lionfish ...

Meet the Mimic Octopus, a brilliant sea creature that can impersonate venomous fish, sea snakes, and more to fool predators ...

It is a venomous fish, but only the tentacles ... Errol Hanna: It's an invasic fish. They devour other fish in the sea. So the snappers and the other edible fish that we normally eat, the lionfish ...

Honolulu Ocean Safety has issued a box jellyfish alert this morning for Waikiki and Ala Moana beaches. The box jellyfish, ...

With a recent bloom of toxic algae, beachgoers in coastal North County have been seeing dead or sick sea lions, dolphins and other marine life washed ashore over the last few weeks. The city of ...