Cambrian Explosion Archive

What Is the Cambrian Explosion?

The Cambrian Explosion* is biology’s version of the Big Bang. Just as cosmology’s Big Bang undid the dogma of an eternal universe, biology’s Big Bang uprooted Darwin’s Tree of Life. First, if all of geological history were compressed into a twenty-four-hour clock, most of the distinct animal forms the world has ever known would appear […]

MENU