Barracuda

Barracuda are predatory fish that are notorious for being one of the most dangerous marine creatures of all time. They are aggressive saltwater fishes and live in tropical and subtropical waters, often found near coral reefs. They have a large, unmistakable snout shape and fanged teeth. Their underbite is caused by their pointy skulls.

When attacking prey, barracudas can reach speeds of up to 27 miles per hour (43 kilometers per hour). Its jaws are very powerful and can pose threat to any prey. Barracuda sometimes confuse snorkelers for prey and attack them. Such attacks usually involve a single, powerful hit that results in a laceration and some tissue loss. In addition, gastrointestinal maladies caused by barracuda can last several days, adding to general weakness in their arms and legs. The sickness is serious, and the symptoms might persist for weeks. These attacks, however, are uncommon.