alone
animal
ape
bars
behind
black
brown
cage
caged
captive
captivity
chimpanzee
depression
despair
endangered
expression
eyes
face
fence
forest
freedom
funny
fur
hair
hope
inside
jail
jungle
locked
loneliness
lonely
look
looking
mammal
metal
monkey
natural
nature
one
primate
prison
sad
sadness
solitude
thailand
trapped
waiting
wild
wildlife
zoo