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Top 10 viral videos of the week: December 21
What really happens when you tread on lava

Top 10 viral videos of the week: December 21

AEST 00:00, Sun Dec 21 2014
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This week, your curiosity seems to have got the better of you, with the most viewed viral video revealing what really happens when you tread on lava.

You watched dog and cheetah BFFs play rough-and-tumble, a cat who couldn't figure out what it was doing wrong, a responsible elephant who takes out the trash and a humpback whale feeding frenzy.

We got all warm and fuzzy over a perfectly timed photobooth proposal and a couple of kids with hearts of gold, spied on a cat's Christmas dinner, and gawked as a dressed-up dog strolling down the street.

Click through for this week's top 10 viral videos.
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