Evolution: The Shaping Force of Life on Earth
The Power of Natural Selection
Evolution by natural selection is a powerful force that shapes the diversity of life on Earth. It is a process in which organisms with traits that make them better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring.
Turtle Shells as an Evolutionary Puzzle
For many years, scientists debated how turtle shells evolved. The complex structure and protective function of the shell posed a significant evolutionary challenge. However, recent research has shed light on the possible origins of turtle shells from modified rib bones.
The Grand Narrative of Evolution
The basic idea of biological evolution is that populations and species of organisms change over generations through the accumulation of heritable variations. These variations arise from mutations, which are changes in the genetic material of organisms. Over time, these variations can lead to significant changes in the characteristics of a population or species, shaping their adaptations to specific environments.
Resources for Further Exploration
To learn more about evolution and natural selection, you can refer to the following resources:
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