adult
africa
african
aggressive
amphibius
animal
animalia
aquatic
artiodactyla
big
chordata
chordate
conservation
danger
dangerous
endangered
environment
fat
fauna
game
grass
heavy
herbivore
hippo
hippopotamidae
hippopotamus
huge
mammal
mammalia
massive
national
nature
nile
park
protected
reserve
river
safari
savanna
species
sun
sunny
travel
uganda
water
weather
wild
wilderness
wildlife