英文關鍵字
animal
antarctic
antarctica
arctic
bay
behaviors
cold
encounter
environment
floe
fur
glacier
global
harbor
hydrurga
ice
iceberg
isolated
leopard
leptonyx
mammal
marine
melting
moving
native
natural
nature
ocean
pack
pole
predator
sad
sea
seal
sleepin
sleeping
snow
south
teeth
travel
video
waddling
water
white
wildlife
winter
yawning