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.
Some sharks are fast and some sharks are slow, but the great majority cruise at very low speeds. While great whites, blues, and makos are capable of a great speed burst, most sharks swim at around 1.5 miles per hour when they're not actively chasing prey or attempting to escape from a dangerous situation. This speed falls about in line with the average human swim speed, which is between 1 and 2 miles per hour.