World's oldest dog: The oldest dog ever on record was an Australian cattle dog. He was famous all over the world by the name of Bluey. He left this world only after crossing the age of 29.
World's largest dog: The worlds heaviest and longest dog was an Old English Mastiff called Zorba. He won the crownin In 1989, at that time he was 343 lbs and was 8 feet 3 inches long.
World's tallest dog: The tallest dog dog till date is Shamgret Danzas. his height was 42 inches and his weight was 238 lbs.
World's smallest dog: The smallest dog ever on record was a Yorkie from Blackburn, England. Even when he was fully grown, he was as tiny as 2.5 inches.!His body weight was only 4 ounces! He was so small that he could be comfortably placed in palm of one's hand, just like a lemon tart.
Worlds Best Drug Sniffing Dogs "Rocky" and "Barco" are the super dogs who were famous because of their extra sensory noses that could sniff drugs even at a distance of miles. These champs patrolled the Texas and Mexico border, and busted so many rackets that the drug dealers put a price of $30,000 dollars on their heads.