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adult

hippos

eating

hay

zoo

hippopotamus

hippo

trapped

poor

miserable

lonely

wildlife

wild

strong

nature

mammal

large

huge

animal

europe

eat

safari

habitat

brown

park

help

barn

rights

animals

african

amphibious

family

dangerous

food

africa

herbivore

cruelty

big

behavior

outdoors

black

freedom

free

walk

loneliness

depressing

captivity

captive

cage

hungry

sad