One hundred million years ago the monstrous dinosaur was the king of beasts. Then the dinosaurs suddenly died off, leaving dominance of the earth to smaller, warm-blooded mammals. One theory is that the great die-off was caused by a sudden change of climate. Another is that the slow-witted, blundering dinosaurs could not cope with mammals that destroyed their eggs. Biochemist Albert Schatz of National Agricultural College, Doylestown, Pa. has a third theory: that the evolution of modern plants was the death of the dinosaurs.
According to Dr. Schatz, the dinosaurs were sluggish beasts whose...
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