Why a shark is a living thing?

Does a fish use it tail to expel or propel itsefl through water? Do fish have spit? What is the function of the counter shading on a fish? WHAt is the different between butterfly and fish? What is a loach fish? What eat a swordfish? Can you get pfiesteria? Where do bubble eye goldfish live? What kind of lever is a fishing rod? Why there is a huge amount of fish increased in the year of 1952? What sounds do puffer fish make? Is it bad for pregnant women to wear high heels? Where do moon fish live? How long does it take for a salmon to become an adult? What is the singular possessive form of abyss? How do you kill the people on clickdeath? Are whale shark consumer? Are Great white sharks born alive or hatched? What does the code on a can of Royal Pink Salmon mean 2813P 10810? Do angelfish like fast moving water?