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