The box jellyfish (Chironex fleckeri), aka sea wasp, releases a toxin so powerful that it causes a rapid spike in blood pressure, which can cause cardiac arrest and lead to death. Auscape ...

Here are the top 10, ranked from most dangerous to least dangerous. The Australian box jellyfish, also known as the sea wasp, tops the list as the most dangerous jellyfish in the world. Found in the ...

If sharks can have a week of their own, why not jellyfish — especially the hyper-venomous box jellyfish? Most jellyfish are ...

The infamous box jellyfish developed its frighteningly powerful ... Box jellies, also called sea wasps and marine stingers, live primarily in coastal waters off Northern Australia and throughout ...