论生物进化的内在本质——脱氧核糖核酸的变异

On the Intrinsic Nature of the Evolution in Biology——the Variation of the Deoxyribonucleic Acid

自然选择、适者生存仅仅是生物进化的外因。生物进化的内在本质是脱氧核糖核酸分子的变异。我们探索脱氧核糖核酸分子变异的原因：它可能由化学反应引起；也可能由物理作用引起。而物理作用引起的变异表现得更明显。我们发现最重要的原因是宇宙线的作用。

The natural selection and the survival of the fittest are external causes of the evolution in biology. The intrinsic nature of the evolution in biology lies in the variation of dexyribonucleic acid. We have explored causes of the variation of deoxyribonucleic acid: It is probable that chemical reactions give rise to the variation or that physical interactions give rise to the variation. But the variation from physical interaction is showed clearer. The principal cause is the cosmic ray.