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.

Venom is one of the animal kingdom's oldest and most effective weapons, providing creatures with an effective means of attack or defense. Spider venom, for example, is thought to have evolved from a ...

Can you tell a venomous aquatic creature from a non-venomous one? Test your knowledge of some of the world’s most dangerous underwater animals here. Most people, when asked, are able to name a few ...

Jellyfish infestations are troubling tourists and scientists alike. A diver attaches a sensor to a large Echizen jellyfish, Oct. 4, 2005 off the coast of Komatsu in Ishikawa prefecture, Japan. Yomiuri ...

You may be surprised to discover that physical strength and size isn't what sets apart the world's most dangerous animals. In fact, some of the world's smallest creatures can be the deadliest to ...

Blue dragon sea slugs have been seen in recent weeks washing up on gulf coast Texas beaches but the small venomous creatures are no strangers to Florida. With their hypnotic and iridescent blue color, ...

Nature is beautiful, but don’t let that fool you. Poison isn’t just for snakes; some creatures use it in ways so brutal, you’ll wonder why horror movies haven’t copied them yet. In this wild ride ...

Venom evolved hundreds of millions of years ago, creating a chemical arms race between predatory and prey. Here are some of the most venomous animals living on Earth. When you purchase through links ...