All dogs are probably descended from an animal called Tomarctus.
This animal lived approximately 15 million years ago.
Stone-aged people tamed dogs to help them track game. About eight thousand years ago, ancient Egyptians raised Saluki hunting dogs. Saluki is an arabic word meaning noble one. These dogs are probably the oldest known breed.
Argos or Argus, Ulysses' hunting dog, was the only creature to recognize the Greek hero when he returned home disguised as a beggar after 20 years of adventure.
Cerberus, the three-headed dog of Greek mythology, guarded the gates to the underworld.
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.
Irish Wolfhounds rank as the largest dog, and Chihuahuas as the smallest dog. The St. Bernard is the heaviest dog and other breeds range in size between these extremes.
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.
A dog's heart beats between 70 and 120 times a minute, compared with a human heart which beats 70 to 80 times a minute.
A female carries her young about 60 days before the puppies are born.
You don't say...
The hot, summer days - Dog Days - which Sirius was thought to cause, run from July 3 to August 11th. The three stars of Orion's Belt point at the Dog Star, Sirius, in Canus ajor at Orion's heels. It is best seen in the northern hemisphere during winter, between December and March.
- first published in the May/June 1994 issue of ZuZu
illustrations by Kirsten Wehmann