Not your typical cutesy animal story. What we have is the official Guinness World record holder for being the tallest dog and the official world record holder for the shortest dog and we have pictures.

Ok, we'll be honest - this probably is your typical cutesy animal story...

In case you haven't worked it out, on the right of the picture is Boo Boo, a long haired Chihuahua - who stands just 10.16 cm (4 inches) tall (or is that short?) - either way it's an an official Guiness World Records title for the world's smallest dog.

Which means on the left of the picture is Gibson is a harlequin Great Dane who holds the Guinness World Records world's tallest dog, measuring 107 cm (42.2 inches).

If you haven't been able to spot him yet, he's the one that is blotting out the sun in the picture to the left.

Both dogs were bred in America, the 2 celebrity canines united to celebrate Guinness World Records Day 2007 outside the White House in Washington D.C.

Lana Elswick, Boo Boo’s owner has bred Chihuahuas in Kentucky for 19 years and said that the precious pooch was only the size of a thumb when she was born, and had to be fed with an eye dropper every 2 hours before she could eventually nurse a bottle.

Like all small dogs Boo Boo suffers from 'small dog big heart syndrome', where their size doesn't match their courage. Her owner says that Boo Boo would probably try an attack an intruder given half a chance

Meanwhile, Gibson and his owner Sandy Hall from Sacramento, California regularly visit children’s hospitals, which definitely makes hime the world’s tallest therapy dog, (but we don't actually think there is a record for that)

“He just puts a smile on people’s faces.” said Sandy. “In one split second, people forget their cares and worries”

Like nearly all big dogs, Gibson is of course one (very) gentle giant and of course he loves the attention.

If the measurements and pictures don't give you a good idea on just how big Gibson is, watch the video...we think you'll agree this a a very very big dog.