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 tallest dog..... The tallest dog on record was named Shamgret Danzas. He was 42 inches tall (at the shoulder!) and weighed 238 lbs.
Worlds smallest dog..... The smallest dog in history was a tiny Yorkie from Blackburn, England. At two years of age and fully grown this little dude was an incredible 2.5 inches tall by 3.75 inches long! He weighed only 4 ounces! HE was approximately the size of a matchbox.
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!
Laika became the world's first space traveler. Russian scientists sent the small animal aloft in an artificial earth satellite in 1957.
The basenji, an African wolf dog, is the only dog that cannot bark.
A dog can hear sounds 250 yards away that most people cannot hear beyond 25 yards. The human ear can detect sound waves vibrating at frequencies up to 20,000 times a second. But dogs can hear sound waves that vibrate at frequencies of more than 30,000 times a second.
Dogs cannot see as well as humans and are considered color blind. A dog sees objects first by their movement, second by their brightness, and third by their shape.
