...that many more individuals are born than can possibly survive—that individuals having any advantage, however slight, over others, would have the best chance...preservation of favourable variations and the rejection of unfavourable variations, I call Natural Selection. Variations neither useful nor injurious would not...

...individuals are born than can possibly survive) that individuals having any advantage, however Blight, over others, would have the best chance of surviving...rigidly destroyed. This preservation of favourable individual differences and Yariations, and the destruction of those ivhich are injurious, I havo called...

...two extracts from Mr Darwin,s work on the Origin of Species will serve to explain its meaning. " The preservation of favourable variations, and the rejection...of injurious variations, I call Natural Selection. No complex instinct can be produced by it, except by slow and gradual accumulation of numerous slight...

...many more individuals are born than can possibly survive-— that individuals having any advantage, however slight, over others, would have the best chance of surviving and of procreating their kind Î On the other hand, we may feel sure that any variation in the least degree injurious would be rigidly...

...selection, the "destruction " or atrophy of every organ which is in any degree "injurious." He says: — "On the other hand we may feel sure that any variation...least degree injurious would be rigidly destroyed. [Why has it not " rigidly " destroyed the camel's hump?] This preservation of favorable individual...

...advantage, however slight, over others, would have the best chance of surviving and of propagating their kind. On the other hand we may feel sure that any variation in the least degree injurious [such as a toothless upper jaw in a calf occurring in a species with full sets of incisors] would be...

...fittest, and by the destruction of the less well-fitted individuals." "Individuals having any advantage, however slight, over others, would have the best chance of surviving and of propagating their kind. On the other hand we may feel sure that any variation in the least degree injurious...

...that many more individuals are born than can possibly survive), that individuals, having an advantage, however slight, over others, would have the best chance of surviving and procreating their kind?" " If," he continues, " a man can, by patience, select variations useful to...

...individuals are born than can possibly survive) that individuals having any advantage, however Blight, over others, would have the best chance of surviving...rigidly destroyed. This preservation of favourable individual differences and variations, and the destruction of those which are injurious, I have called...

...disappear because they entail the destruction of the races in which they are produced. He tells us : " This preservation of favourable variations and the...of injurious variations, I call Natural Selection." 1 What does the author understand by law ? He answers : " The series of facts as it is known to us."...