saltationist theory

biology

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July 21, 2026

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Saltationist theory, also known as saltatory evolution, proposes that evolution occurs through sudden, significant variations or leaps, rather than gradual changes over time. This concept contrasts with Darwinian evolution, which emphasizes slow, incremental changes.12

The term "saltation" originates from the Latin word "salire," meaning "to leap". In biology, it refers to the idea that new species or higher taxa can arise in a single, major evolutionary step, often attributed to substantial mutations. This perspective is sometimes compared to punctuated equilibrium, which also suggests periods of rapid change interspersed with long periods of stasis.2

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mutation theory
…accepted the primary contention of saltationist theory, which argued that new species are produced rapidly through discontinuous transformations. Saltationist theory contradicted Darwinism, which held that species evolved through the gradual accumulation of variation over vast epochs. Second, mutationists tended to hold the strict Darwinian line that all differentiation is for…
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…accepted the primary contention of saltationist theory, which argued that new species are produced rapidly through discontinuous transformations. Saltationist theory contradicted Darwinism, which held that species evolved through the gradual accumulation of variation over vast epochs. Second, mutationists tended to hold the strict Darwinian line that all differentiation is for…
Read More