My how he's grown!

Toronto Zoo's polar bear cub explores the zoo's Big Polar Bear Habitat for the first time and gets ready for his summer swim. Humphrey, born in November, seems a little shy about jumping in off the rocks, but he wades in and chomps on some rushing water like a pro.

It seems like just yesterday that little Humphrey was taking his first bath...

A polar bear cub takes his first bath at the Toronto Zoo. VPC

... and his wobbly first steps.

Watch this adorable polar bear cub take his first steps at the Toronto Zoo. The cub is being cared for by zookeepers because his mother has a history of rejecting her cubs. VPC

How can we forget the mess he made eating a Super Bowl snack?

The Toronto Zoo's polar bear cub got to try out a "super bowl" of its own. For more adorable polar bear videos, visit youtube.com/TorontoZooChannel VPC

Here's one of our favorites: Humphrey playing in the snow for the first time. Oh, that face!

The baby polar bear at the Toronto Zoo has another Internet hit on its paws, as the zoo released another video of the bear playing in the snow for the first time. Jen Markham has the adorable video. Video provided by Buzz60 Newslook

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