Columbus Zoo's 7lb polar bear cub is teething

Polar Bear Cub Makes Debut at Columbus Zoo

Polar Bear Cub Growing Up Fast at the Columbus Zoo

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 Enjoys the Snow in his new Outdoor Habitat

Toronto Zoo Polar Bear Cub Introduced to Snow for the First Time(1)

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!

Toronto Zoo Polar Bear Cub - My Paws Are Growing

Toronto Zoo Female Polar Bear Cub at 2 Months Old

Toronto Zoo Polar Bear Cub 'Super Bowl'(1)

Drawning Polar Bear Cub gets helped by his Mom at Zoo

First Lioness in 15 Years at Brookfield Zoo Forests Are Important - Polar Bears International Hudson Polar Bear 2

Chester Zoo's Sun Bear Cub Emerges From Den for First Time

Polar Bear Cub Cuddles With Mother Bear-gPpf1mwgXMw

Fidgety Polar Bear Cub Struggles to Get Comfortable Atop Sleepy Momma Bear

Saint Louis Zoo's Polar Bear Explores Freshly Fallen Snow

Utah Zoo's Polar Bears Play Together for First Time

Meet Juno, the Toronto Zoo's adorable baby polar bear

Singapore Zoo's elderly polar bear celebrates his 27th birthday