The fossil record speaks clearly and cries out loud: the history of life on Earth is a history of saltations.
One researchers has preferred to classify Kimberella among the Ediacaran “fossil problematica.”
Scientists debate whether ctenophores are the earliest animals to appear in the Cambrian explosion. If so, they arrived with multiple tissues, a nervous system, and a digestive system.
The Cambrian explosion remains one of the severest evidential challenges to Darwinian evolution.