英文關鍵字
nutria
otter
wild
habitat
nature
water
wildlife
river
animal
lake
beaver
rodent
rat
fur
natural
coypu
wet
species
myocastor
swamp
invasive
mammal
environment
brown
pond
coypus
pest
drainage
marsh
cute
swim
bath
myocastorini
burrow
feeding
scratch
ecosystem
swimming
mouse
teeth
eating
clean
park