National Hippo Day 2019by Cyril BrassFebruary 15, 2019January 12, 2023National Hippo Day – February 15, 2019#NationalHippoDayHippopotamusNational Hippo DayNational Hippo DayShare on FacebookTweetFollow usSaveTags:African MammalsAfrican WildlifeHippopotamusMammalsNational Hippo DayWildlifeWildlife Around the WorldWorld Hippo Day