World's Smallest Dog: 4 Inch Tall Chihuahua

Meet Boo-Boo, a tiny chihuahua who just made the giant leap into history by being the new World's Smallest Dog:

At just four inches tall, "Boo-Boo," a diminutive dog in Raceland, Ky., just edged out another chihuahua to win the crown.
Lana Elswick says Boo-Boo was born the size of her thumb. Elswick says from the beginning she knew her dog was special, but it wasn't until a few weeks ago that she knew just how special.
"There was this contest going on between two little dogs, but I knew I had the smallest one. But, I just had to wait until I had my certificate to show everyone," Elswick says.
The Guinness Book now considers the full-grown though petite pet the smallest dog in the world, nearly an inch smaller than the previous record holder.

Link (with video)

Eyes. O_O

PS - "Boo-boo"? Really..?

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I love toy breeds and own a Maltese. However, breeding for small size (or large size, or narrow heads or pretty rear ends) is cruel and harmful to the breed. I will control my rant but trust me, I could go on for hours about the horrors inflicted on breeds by the AKC. Give me a mutt any day. Oh, yeah, there aren't any left since cities now require all non-show dogs to be neutered.

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Why do all chihuahuas always look so terrified?

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It's because they're always afraid of being stepped on, cuimhne!

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I've always thought most chihuahuas looked like overgrown rats...

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i think that is disgusting have you starved the poor dog or something . it looks really skinny to me ...