Top 10 Most Dangerous sea creatures in the world In our article we are going to tell you about the world's ten most dangerous sea creatures.   Let's see who are these ten deadly sea creatures. 10. Barracuda   Barracuda has a sharp-edged tooth like a snake, which acts like a piranha's tooth. They can grow up to 7 feet and can catch their prey at a speed of 27 miles per hour because of the fast swimmer. This dangerous sea creature aligns his body weight before attacking the victim. Due to its sharp pointed teeth, Barracuda is capable of attacking the nerves and blood vessels of their prey. Generally this sea creature does not face humans, but whenever this happens a bloody struggle can happen. "> "> 09. Moray Eel   This dangerous sea creature called More Il is found in ocean or black water, they generally avoid contact with humans whenever possible and are considered to be relatively shy creatures!