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