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Biological Evolution
The process by which species of organisms undergo change over time through genetic variation and natural selection, leading to the emergence of new species.
Punctuated Equilibria
A model of macroevolutionary change that suggests evolution occurs via long periods of stability or stasis punctuated by periods of rapid change.
Darwinian Gradualism
The theory proposed by Charles Darwin that evolution occurs through the gradual accumulation of small genetic changes over time.
Fossil Record
The total number of fossils discovered and the information they provide about past life forms and the environments they lived in.
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