Well, someone did an amazing edit on that original photo!! (It wasn't me)...and it has spread over the entire internet. I have tried to find the original dog photo with no success...if anyone sees it please post it here.
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"Our grey cat is definitely strange. He spends a lot of time on the roof of our house, pacing along the ridge tiles or walking along with his feet in the guttering. He's been known to leap fifteen feet to the ground, and delights in walking along the balcony railing here - 2" (45mm) wide and 40 feet (12m) above the ground, a sheer drop! His tabby brother is a total groundhog by comparison and about as agile as a wooden iguana. It's weird how cats from the same litter can be so dissimilar. "
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Personally, I fall off the roof too often to go up there much!