Keywords: Hroch obojzivelny.jpg Photo of Hippoppotamus taken in ZOO Ostrava My friend Štěpánka Mohylová's photo taken in Ostrava ZOO She allowed me to publish as public domain 2006-10-23 Irigi I the author of this work hereby release it into the public domain This applies worldwide Hippopotamus amphibius in zoos Hippopotamus amphibius in Zoo Ostrava |