ScienceAugust 15, 2026

gradualism

GRAD-joo-uh-liz-um

Definition

The theory that evolutionary change occurs through a slow, steady accumulation of small, incremental modifications over vast periods of time.

Etymology

Derived from the Latin 'gradualis' (stepping or walking), which itself comes from 'gradus' meaning 'step.' It entered English in the 19th century to describe theories of slow, continuous change.

In the news

The article uses gradualism as a concept that struggles to explain the abrupt anatomical gaps in the fossil record, noting that some scientists rely on it despite evidence that undermines the idea.

Study of Biological Origins Is Entering a Surreal Stage

Read the full article ↗

Science and Culture Today

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