Marine animals can be fascinating and quite beautiful. However, you should not approach some of them. Certain fish and jellyfish are highly poisonous, and contact with them can sometimes be fatal.

Some of the ocean’s deadliest animals are almost impossible to see. This video examines a jellyfish so small it can fit on a fingernail, yet capable of delivering life-threatening venom. Its size ...

A British tourist narrowly escaped a fatal encounter in the Philippines after handling a venomous blue-ringed octopus, mistaking it for a harmless bab ...

Scientists analyzed thousands of autopsies of seabirds, sea turtles and marine mammals and found that even small amounts of ingested plastic can be deadly. By Sachi Kitajima Mulkey Two baseballs for a ...