"She dwelleth and abideth on the rock, upon the crag of the rock, and the strong place. "From thence she seeketh the prey, and her eyes behold afar off. Her young ones also suck up blood: and where the slain are, there is she."—Job xxxix.
1070. Why have infants no teeth?
Because the presence of teeth would interfere with their suckling, while the teeth would be of no service, until the child could take food requiring mastication.
1071. Why cannot flesh-eating animals live upon vegetables?
Because the gastric juice of a flesh-eating animal, being adapted to the duty which it has to perform, will not dissolve vegetable matter.
1072. Why have birds gizzards?
Because, having no teeth, the tough and fibrous gizzards are employed to grind the food preparatory to digestion.
1073. Why are small particles of sand, stone, &c., found in the gizzards of birds?
Because, by the presence of those rough particles, which become embedded in the substance of the gizzard, the food of the bird is more effectively ground.