Gradualism in evolutionary processes from "summary" of On the Origin of Species By Means of Natural Selection by Charles Darwin
The process of evolution, as observed in the natural world, is characterized by a gradual change over time. This gradualism is a fundamental concept in understanding how species evolve and adapt to their environments. Instead of sudden and drastic changes occurring in a short period, evolution proceeds at a slow and steady pace, with small variations accumulating over generations. This gradual accumulation of changes can be seen in the fossil record, where transitional forms between different species provide evidence for the gradual nature of evolution. These transitional forms show intermediate stages between distinct species, demonstrating how one species can gradually transform into another over time. One of the key mechanisms driving this gradual change is natural selection. As individuals within a population vary in their traits, those with advantageous traits are more likely to survive and reproduce, passing on their beneficial traits to futur...
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