The Dunn's fish can cut a shark off at the knees with one bite, and has a mouth with bladed, ancient teeth as sharp as a blast to the point of being so sharp that it makes many ophthalmologic creatures cringe. He is the Devonian dominant Dunn's fish. Dunn's fish survived in the late Devonian period, about 380 to 358 million years ago the largest kind of Dunn's fish weight up to two tons, body length in six meters, the head and neck covered with thick hard exoskeleton, more suitable for the whole body offensive and defensive, let it become the Devonian overlord. Devonian period is the beginning of the age of fish, a variety of fish they slowly evolved up and down, many fish began to you fight, thinking whether it can be in this chaotic early ocean on the throne.

Ton batch family representative of the Dungeness fish successfully ascended to the top of the food chain, it is the emergence of vertebrates super predator. The Dun's fish's powerful bite can reach 760 kilograms, which was strong enough in the oceans at the time. However, some people say that the bite force of the Dungeness fish can reach about five tons, I think that should be unlikely, because the largest Dungeness fish paper gives the recovery is 8.8 meters and their own to reach five tons of bite force, the elongation of the reach more than ten meters, and the Dungeness fish is not necessarily can have more than eight meters.

Dun's fish's mouth is very unique, so that the Dun's fish has a very fast speed to feed prey, and they have a very strong appetite. However, some scholars believe that duns are not as well digested as they should be, as fish mutilations that have not been fully digested can often be found around where duns are found. Back before the Devonian period, the oceans were ruled by those reflective creatures with the appearance of the Dunn's fish ending their reign. In the eyes of the Dunn's fish, any creature in the ocean can be the object of his attack, like trilobites, nautilus, scleractinian fish, etc., and even the sharks it has no fear, and even the same kind of him, in many fossils have been found in their respective bite marks.

Compared to the three overlords of the ocean before the Devonian period, Dunn's fish can be much more ferocious than them. Clothed in armor, with steel blades hidden in their mouths and an outstanding bite, the fish were invincible in the oceans at the time, and just when they were enjoying a smooth ride through the food chain, the fish's good times came to an end, and they couldn't escape extinction by nature. Due to the increasing growth of algae in the ocean at that time, the survival of plankton was threatened, the gradual lack of oxygen in the ocean, many fish due to lack of oxygen and slowly die, food is more and more lack of, Deng's fish family is also under the double pressure disappeared in the long river of history, leaving us only their gray armor of the former glory.