Les Do Reacts to 12 Strangest Things Found in Swamps. you will be amazed at Swamp creatures list are found. in the video i discuses Most dangerous swamps in the world. i identified 10 swamp animals. Some have believe among us are some Mythical Swamp creatures. i honestly believe they are Swamp predators, Scary swamp animals, Dangerous swamp animals. we will never know.