英文關鍵字
animal
aquatic
behaviour
biology
breeding
close-up
conservation
coupling
cycle
damselflies
damselfly
ecosystem
egg
eggs
entomology
environment
footage
habitat
history
insect
lake
large
laying
life
lifecycle
macro
mating
natural
nature
oviposition
pair
pond
red
reproduction
river
stream
submerged
submerging
tandem
two
underwater
video
water
wetland
wildlife