12/22/2012 11:21 pm ET Updated Dec 22, 2012

Best Animal Videos Of 2012: The Cutest, Funniest And Most Popular Clips Of The Year

As 2012 comes to an end, it's a good time to reflect and remember the most important stories of the year. So let's be honest: wacky, cute and fascinating animal videos stole the show.

This was a particularly good year for animal watching: Viewers saw Siku the polar bear grow up on a live webcam, a monkey traipse through IKEA and sloth mania take the world by storm.

Cute pets were also a source of celebration here at The Huffington Post. If you want to take the aww-factor up a notch, check out our user-submitted Cutest Pets of 2012 slideshow.

Unfortunately, some of this year's animal stories left us little to smile at. Abuse at farms, horrific poaching and undercover trafficking were just a few of the issues surrounding animal welfare and conservation. As for domestic pets, millions of stray dogs and cats are euthanized every year. To support conservation efforts, consider donating to the World Wildlife Fund here. You can also check out the ASPCA website or Petfinder.com for more information on how to help domestic animals in need of a home.

Here are the best animal videos from 2012. "Like" your favorites, and tell us other great videos in the comments below!

Best Animal Videos Of 2012