In Belgrade , capital city of Serbia , there is a Zoo where they keep 2 Hippos in worst conditions that human mind can ever imagine . They lie in a small places in dirty and stinky surrounding  full of they own poop . Hippos are lying in stress and depression , clearly unhappy and probably very unhealthy . Please sign this petition to help to this poor animals , lets find for them new places to live and give them new life that every animal deserve  BEFORE IT IS TOO LATE