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Pressure changes
Cladogenesis
An evolutionary splitting event where a single lineage divides into two distinct lineages, leading to increased biodiversity.
Anagenesis
The gradual evolution of a species to a new form, without branching or diversification into multiple species.
Genetic Variation
The diversity in gene frequencies within a population, which is the raw material for evolution by natural selection.
Colder Regions
Geographic areas characterized by low temperatures, often leading to specific adaptations in living organisms and human societies.
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