40 years ago today: Wrigley gum the first product to have its bar code scanned. A 10-pack of Wrigley Juicy Fruit gum was the first item scanned for its UPC in a grocery store 40 years ago in 1974. A 10-pack of Wrigley Juicy Fruit gum was the first item scanned for its UPC in a grocery store 40 years ago in 1974.
The average fall was 5.5 stories. Of the 115 cats studied, 90 per cent survived, including one cat that fell 32 stories onto a sidewalk and suffered only a mild chest injury and a chipped tooth. Interestingly, cats that fell from 9 or more stories suffered fewer injuries than those falling from lower heights.
Like humans, dogs have two sets of teeth in their lives. The 28 baby teeth erupt through the gums between the third and sixth weeks of age. Puppies do not have to grind much food, so they do not have molars. Puppy teeth begin to shed and be replaced by permanent adult teeth at about four months of age.