英文關鍵字
adult
amazonia
america
animal
appetite
aquatic
brown
canine
carnivore
crunchy
diet
eat
eating
ecuador
endangered
fangs
feeding
fur
hair
head
hungry
hunter
latin
lunch
male
mammal
mastication
meal
motion
mouth
otter
predator
river
sitting
slow
snake
south
teeth
water
wild
wilderness
wildlife
worm