Feared by most but still loved by many, sharks are one of the most fascinating and mystic creatures prowling the Earth's seas. Essentially unchanged for the last 400 million years, sharks are defined as a fish with a full cartilaginous skeleton and a streamlined body, ranging in size from the two foot pygmy shark to the giant 50-foot whale shark. There are more than 250 different species of sharks currently identified, making it one of the most diverse animals on the planet.
Infographic by: labroots