africa
african
amphibious
animal
aquatic
background
big
body
brown
camera
closeup
danger
dangerous
day
endangered
eye
facing
fat
feeding
front
grass
head
hippo
hippopotamus
huge
isolated
large
looking
male
mammal
mouth
national
natural
nature
one
overweight
park
portrait
safari
skin
species
standing
sunny
vertebrate
water
white
wild
wildlife
zoo