9.    STONEFISH

Top 10 Deadliest Animals : These fish are dangerous not only because they are the most venomous fish on the planet, but also because they are incredibly fast and also very hard to see. They are camouflaged naturally to blend in with the ocean floor. While they are only aggressive toward their prey, it is easy to make the mistake of stepping on one. The venom from the spines can cost you a limb or even kill you.