Drawbacks and Criticism of Darwinism

Estimated time: 2 minutes

CISCE: Class 12

Key Points: Drawbacks and criticism of Darwinism

Darwin failed to clearly explain the actual sources of biological variations and the underlying genetic mechanisms of natural selection.
The theory effectively accounts for the "survival of the fittest" but fails to explain the origin or the "arrival of the fittest."
Natural selection acts merely as a guiding factor on existing traits, rather than as a creative force capable of generating new heritable variations, such as mutations.
Survival is not always determined by advantageous traits, as natural disasters can cause widespread, non-selective mortality regardless of an organism's genotype.
Chance factors, such as the random genetic makeup of a few individuals colonising a new habitat, play a much greater role in evolution than Darwin realised.