英文關鍵字
amphibian
animal
aquatic
baby
background
biological
biology
black
dark
environment
family
find
food
frog
green
group
habitat
larva
life
natural
nature
pattern
polliwog
pollywog
pond
pool
river
small
swarm
swimming
tadpole
tadpoles
tail
toad
underwater
water
wild
wildlife
young
zoological
zoology