There are as many as 25000 different types of fish in the different water sources all around the world. These fascinating creatures are found in almost every water source and environment. E.g.: Even in Antarctic a fish type called icefish is found and this fish survives in the water that is below freezing point.
Distribution They are found world wide in warm seas (tropical and subtropical). Speed Tiger Sharks swim at a speed of 2.4 mph. They also swim in fast burst, but can only sustain these high speeds for a couple of seconds. Nicknames They are considered the garbage can of the sea.s the Tiger Shark a deadly killer or a unfortunate victim of yellow journalism? One of the largest sharks in the world adults commonly reach lengths of 3.3-4.3 m and weigh between 385-635 kg. Length at birth varies from 51-76cm.
Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour. Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured. The Blue Shark (Prionace glauca) is an open ocean glider, planing on wing-like pectoral fins and flattened belly.