英文關鍵字
amazon
america
animal
aquarium
aquatic
attack
belly
bite
brazil
carnivore
closeup
danger
dangerous
essequibo
exotic
fauna
ferocious
fish
fishes
footage
fresh
freshwater
jaws
mouth
nattereri
natural
nature
paraguay
parana
pet
piranha
piranhas
predator
pygocentrus
red
redbellied
river
serrasalmidae
sharp
south
swim
swimming
tank
teeth
underwater
water
wild
wildlife