Fat Canaries in a Coal Mine
- If it were just kids, we could blame obesity on the cutbacks in phys-ed classes, school vending machines that sell high-calorie junk, and the substitution of videogames for kickball. If it were just adults, we could blame obesity on supersizing, fast-food meals, and pedestrian-unfriendly towns that force everyone into a car. But while 68 percent of American adults qualify as overweight or obese, and 17 percent of children do (compared with 5 percent in 1971), there are other increasingly pudgy populations. Meet some overweight pets, lab animals, and even urban rats.