The entire herd turned sorrowful eyes on him. Seven of the calves and four of the yearlings trotted to the gate, which Stonecypher held open, and jostled out of the pasture. As the calves began to lie down under the trees, a white heifer-calf nuzzled Stonecypher's hand and bawled, "Paaapy gyoing a fyightt?" "Yeah, he's goin' to fight," Stonecypher answered. "Your pappy's gone to the bullring. He suggested it, and made the choice himself. He's got real courage. You oughta all be proud of him." The calves bawled their pride. Including those remaining in the pasture, they presented a colorful variety of spots, specks, splotches, browns, reds, blacks, and even occasional blue and greenish tinges. Stonecypher sat facing them from a stump. He said, "I'm sorta late for the lesson, today, so we'll get on with it. Some of this will be repetition for you yearlings, but it won't hurt. If you get too bored, there's corn and cottonseed meal in the trough, only be quiet about it. "Now. To look at you all, nobody would think you're the same breed of cattle; but you, and your mammys, and Moe are the only Atohmy cattle on Earth. It's usually hard to say exactly when a breed started; but you all started a long, long time ago, on July 16, 1945, near Alamogordo, New Mexico, when they exploded the first Atomic Bomb." At mention of Atomic Bomb, who had succeeded the Bogger Man as a means of frightening children, one of the younger calves bawled. Her polled, brindled mother ran in ungainly fashion to the fence and mooed with great carrying power. "All right!" Stonecypher yelled. The cow closed her big mouth, but stayed by the gate. "Can't go by what you hear the tenants tell their kids," Stonecypher cautioned the calf. "Atomic Bomb is as dead as the tank and the battleship. "Now, like I was sayin', the scientists put Atomic Bomb on a hundred foot tower and blowed him up. There was a flash of fire, and an awful racket, and the blast raised up a lot of dirt and dust from the ground. All this dust achurnin' around in the cloud bumped into little bits of metal and stuff that was highly radioactive. That means, the basic atoms of matter had been thrown out of kilter, sorta deranged. The protons and electrons in an atom oughta be about equal for it to be stable, but these were shootin' off electrons, or beta particles, and givin' off something like powerful x-rays, called gamma rays, and things like that. "Anyhow, this radiation affected all the sand and bits of rock and dirt in that bomb cloud. This radiation is dangerous. Some of it will go right through several inches of lead. Enough'll kill you. Your ancestors were ten miles or so from where Atomic Bomb went off.