In contemporary era a large number of rare creatures has been extinct and there is no way to bring their kind back to life again. Still, there are some species which are in danger and could be saved.However,some humans find it unnecessary to spend money on distinguishing companies and projects that would help preserve animals facing extinction alive.From my point of view ,I firmly believe that keeping endangered species alive is a significant tasks for government, which should be carried out,despite the large possible costs .