英文關鍵字
africa
african
animal
animals
behavior
behavioral
black
crossing
dominant
drive
game
grass
group
herd
hierarchy
kenya
landscape
large
leader
line
male
mammal
mara
masai
migration
nairobi
national
nature
ngorongoro
park
reserve
river
road
safari
savanna
savannah
science
serengeti
social
striped
stripes
tanzania
together
waiting
walking
water
white
wild
wildlife
zebra
zebras