关於“种内斗争”问题,是达尔文理论中的一个错误部分,这个错误是与他当时受资产阶级的思想影响及其阶级出身分不开的。他在读马尔萨斯的人口论时,由於他长期的观察过动植物的大量繁殖及生存斗争的情况,他误认为马尔萨斯的理论很适合用之於生物界来,所以他错误的搬用了这个理论。这个理论的大意是:人口是按几何级数增加,生活资料(食粮)是按算术级数增加,这样来就不可避免的要发生食料的恐慌而引起斗争。这理论当然是非常荒谬的,并且理论的 The question of “intra-genital struggle” is a wrong part of Darwin’s theory that is inseparable from his time under the influence of the bourgeois ideology and his class. When he read the Mulsasian theory of population, he mistakenly assumed that Malthus’s theory was well suited to the biological world because of his prolonged observations of the multiplication of animals and plants and his struggle for survival. He therefore mistakenly used this theory. The effect of this theory is that the population increases according to the geometric series, and the means of subsistence (food grains) increases according to the arithmetical progression so that it is inevitable that there will be food scare and struggle. This theory is, of course, very absurd and theoretical