ScienceAugust 27, 2026

symbiogenesis

sim-bee-oh-JEN-uh-sis

Definition

A theory of evolution proposing that the union or merging of two or more distinct organisms is a primary driver of evolutionary change and complexity.

Etymology

Derived from the Greek words 'symbiosis' (living together) and 'genesis' (origin/creation), this term was coined in the early 20th century to describe the evolutionary process of organisms merging into a single life form.

In the news

In this article, the author lists symbiogenesis among several non-Darwinian evolutionary models that Stephen Meyer argues cannot adequately explain the origin of the information required to create new, complex biological features.

Fighting a Battle That’s Over, and ID Won

Read the full article ↗

Science and Culture Today

Related words

Learn words like this every day

Meet new words every morning.

Newspoken pulls carefully chosen words from the day’s news — with clear definitions, context, and light review that makes them stick. Get it on your phone.