You know when something gives you the giggles and you just can't stop? This baby is experiencing that feeling for the first time. And what sparked it all? Of all things, it was seeing her dog eating popcorn that set her off...
The baby girl's father films her as he feeds their dog pieces of popcorn (in case you're wondering, yes, it is safe) - and her reaction really is priceless. The little girl is left beside herself with laughter as the dog wolfs down the treat.
In fact, it doesn't matter how many times her dad repeats the trick - every time she is first rapt with delight and then consumed with a body-shaking roar of laughter. We hope her dad realises his little girl won't always be such an easy audience!
And Dad can't help but laugh along, too.
"There's nothing more contagious than the laughter of young children," said one commenter on YouTube. "It doesn't even have to matter what they're laughing about!"
The fact that the adorable clip has racked up nearly six million views on the site just goes to show that a baby's laughter is indeed so contagious that viewers just had to share it.
Another viewer remarked that 'If this doesn't just make you smile and giggle with glee, check to see if you still have a pulse.'
It's hard to disagree!
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