ot exceed 1.5 meters. Saw sharks (Pristiophoriformes) are harmless bottom sharks. They are also a single family but with five species. They are also ovoviviparous livebearers. Four sharks that belong to the order Sqauliforme are the Bramble, Dogfish, and Rough sharks. They have three families with eighty-two species. They too, are ovoviviparous livebearers. They have more cylindrical bodies. Frilled sharks, Six, and Seven gill sharks (Hexanchiformes) have two families and five species. Once again they are also ovoviviparous livebearers. Usually, these guys are found in deep waters. The Catsharks, Finback Catshark, False Catshark, Barbelled Houndshark, Weasel, Houndshark, Hammerhead, and Requiem sharks (Carcharhiniformes) have one hundred and ninety-seven known species. Most of these sharks are known to be dangerous. They are both oviparous and ovoviviparous livebearers. This is not the type of shark you would like to have grace you presence. From the order of Landformes is the Sand, Basking, Goblin, Crocodile, Megamouth, Thresher, and Mackerel sharks. They come complete with seven families and fifteen or sixteen species. All of them are ovoviviparous livebearers. These sharks are found in all seas except Arctic and Antarctic. The last group of sharks would be the Collared Carpet sharks, Blind, Wobbegongs, Zebra, Longtailed Carpet Sharks, Whale, and Nurse sharks. They all belong to the order Orectolobiformes and have seven families and thirty-three species. These sharks prefer the warmer water and are both ovoviviparous and oviparous livebearers. Obviously these sharks come in many different sizes and some are more dangerous than others. At least eighteen species in four families and nine genera have been implicated in attacks on humans. Obviously a small shark such as the Pygmy is harmless, but they still must be treated as a predator especially the bigger ones. The smallest of all sharks is the Pygmy Ribbontail Catshark, which is about...
