英文關鍵字
coypus
nutria
otter
wildlife
animal
aquatic
beaver
brown
swim
coypu
creature
cute
daytime
ecosystem
environment
myocastorini
food
habitat
herbivorous
invasive
lake
mammal
marsh
myocastor
myocastoridae
natural
nature
outdoors
pond
rat
ripple
river
rodent
species
surface
swamp
swampy
wake
water
wet
wetland
wild
wilderness