英文關鍵字
animal
ape
apes
beautiful
bornean
borneo
captive
climbing
cute
endangered
endemic
environment
fauna
forest
hominidae
indonesia
jakarta
jungle
looking
malaysia
mammal
mammalia
monkey
native
nature
orang
orange
orangutan
orangutang
orangutans
outdoors
park
pongo
portraits
primate
primates
protected
pygmaeus
rainforest
reserve
species
sumatra
sun
top
tropical
wild
wilderness
wildlife
zoo
zoological