Many claim the Cambrian explosion was triggered by a sudden global increase in oxygen levels.
The top-down pattern of appearance of animal phyla during the Cambrian explosion represents major conflicting evidence for Darwinian evolution.
If you ever encounter a horseshoe crab on the beach, you are a looking at a creature that would not have appeared out of place hundreds of millions of years ago.
Once upon a time, a cell became a tumor. Animals were soon to follow.
Materialist attempts to model the construction of hierarchical organization from the bottom up collapse into a heap of unanswered questions.