英文關鍵字
amphibian
cold
blooded
eat
head
predator
australian
hunter
reptiles
close-up
northern
territory
crocodiles
mouth
jaws
swamp
water
crocodile
australia
wildlife
reptile
saltwater
river
park
national
kakadu
crocodylus
animal
estuarine
alligator
wetland
vegetation
swimming
rotting
porosus
nests
mud
mounds
freshwater
east
journey
muddy
shallows
deep
spreading
cahills
floods
movement