Sikus first birthday

Siku Orphaned Polar Bear Cub

Polar bear cub takes its first steps at Vienna Zoo

Kara the polar bear cub goes on her first outing at France's Mulhouse zoo

Toronto Zoo Polar Bear Cub Explores his new Outdoor Habitat

Polar bear cub takes first steps in Berlin zoo

German zoo releases new footage of polar bear cub

Watch: First footage released of polar bear cub born at Berlin Zoo

Toronto Zoo Polar Bear Cub Introduced to Snow for the First Time

Toronto Zoo Polar Bear Cub 'Super Bowl'

Berlin Zoo Welcomes New Polar Bear Cub

Toronto Zoo Polar Bear Cub Reveals Name

Toronto Zoo Polar Bear Cub Takes First Bath(1)

Polar Bear Cub Growing Up Fast at the Columbus Zoo

Polar bear cub takes first steps in Berlin zoo

Polar bear cub abandoned by mother being taken care of by zoo staff

Polar Bear Cub Born to First-Time Mom Debuts at Vienna Zoo!

Toronto Zoo Polar Bear Cub Enjoys Playtime in his new Outdoor Habitat

Toronto Zoo Polar Bear Cub - My Paws Are Growing

Toronto Zoo Female Polar Bear Cub at 2 Months Old

Polar Bear Cub Makes Debut at Columbus Zoo

Toronto Zoo Polar Bear Cub Enjoys the Snow in his new Outdoor Habitat

Polar bear cub sees snow for first time at Toronto Zoo

Too Cute! 4-Month-Old Polar Bear Cub Goes on First Outside Outing at Vienna Zoo!

Drawning Polar Bear Cub gets helped by his Mom at Zoo

Polar bear cub celebrates first birthday in Highlands home