It can reach speeds of up to 46 mph, allowing them to hunt swordfish, another extremely fast predator. smaller points on each side, 25-30 rows, lower teeth compressed and blade-like, with small, oblique tips, 32-34 rows five gill slits, all before pectoral base. The fastest shark in the ocean is the short fin mako shark.The largest shark is the whale shark, reaching lengths of 33 feet long.The smallest shark is the dwarf lantern shark (smaller than a human hand!), found at depths of 928 - 1,440 feet along the northern tip of South America.There are over 500 sharks worldwide, and about half of those are less than 3 feet long.Sharks have been around for over 450 million years, making them older than trees. Inside the mouth are 2532 tooth rows in the upper jaw and 3034 in the lower one.A great white shark can have over 30,000 teeth in its lifetime, thanks to their never ending conveyer belt of teeth when a shark loses a tooth, it can get replaced within a day!.Shark skin feels like sandpaper, because their skin is covered in tiny, specialized teeth called “dermal denticles” (aka “skin teeth”).
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