Evolution of fish

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

Fish began evolving about 530 million years ago during the Cambrian explosion. It was during this time that the early chordates developed the skull and the vertebral column, leading to the first craniates and vertebrates. The first fish lineages were jawless. Early examples include Haikouichthys.

Excerpt from the Wikipedia article “Evolution of fish”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: by Joseph Smit (1836-1929), from Nebula to Man, 1905 England, Public domain, via Wikimedia Commons.