英文關鍵字
amphibia
amphibian
animal
aquatic
arboreal
arvalis
biology
blue
brown
camouflage
carnivore
common
copulate
creature
croak
detail
environment
europe
european
fauna
forest
frog
gray
habitat
insectivorous
lake
marsh
mate
mating
natural
nature
organism
outdoors
poison
rana
semi
skin
small
spawn
spawning
species
spring
toad
vertebrate
wild
wildlife
zoology