英文關鍵字
amazon
america
animal
aquarium
aquatic
big
biology
cat
catchfish
catfish
clarius
ecuador
europe
european
fauna
fish
focus
fresh
freshwater
hunting
lake
large
life
nature
one
phractocephalus
pimelodid
pimelodidae
river
selective
sheatfish
siluriformes
south
swim
tropical
underwater
walking
water
wild
wildlife
zoo