Worlds largest dog..... The worlds heaviest as well as longest dog ever recorded was an Old English Mastiff named Zorba. In 1989, Zorba weighed 343 lbs and was 8 feet 3 inches long from nose to tail! Worlds oldest dog..... The oldest dog that has been reliably documented was an Australian cattle-dog named Bluey. He was put to sleep at the age of 29 years and 5 months! Worlds Best Drug Sniffing Dogs.....A US Customs Labrador named "Snag" has made 118 drug seizures worth a canine record $810 million. The greatest number of drug seizures by dogs is 969 in 1988. IN ONE YEAR! The team of "Rocky" and "Barco" patrolled the Texas and Mexico border, alias "Cocaine Alley." They were so good that Mexican drug lords put a price of $30,000 dollars on their heads The basenji, an African wolf dog, is the only dog that cannot bark. Sadly, statistics indicate that eight million pets lose their lives in animal shelters each year due to overpopulation. The normal body temperature for a dog is 101.2 degrees Fahrenheit. Dogs are pack animals by nature. They need closeness, touching, and petting to be content and happy. People have been keeping dogs as pets for the past 12,000 years. Puppies should remain with their mother until they are at least twelve weeks old. During this time, she will teach them not to bite, and how to get along with other dogs. Family dogs who growl when family members are roughhousing aren't upset, they're just asking to become part of the game. Dogs love rituals and routines People with more than one dog shouldn't try to trat them all as equals. Because pack position is important to a dog, this only encourages jealousy games.