africa
african
aggression
aggressive
animal
attack
battle
behaviour
big
bite
conservation
danger
dangerous
defence
defending
display
displaying
fight
game
hippo
hippopotamus
hippopotamus amphibius
horizontal
huge
jaws
large
mammal
nile
power
protected
reserve
roar
safari
safari animals
splash
splashing
submerged
swim
territorial
territory
tooth
vicious
water
wild
wildlife
yawn