Edition · Saturday, 2 May 2026
What happened, the forces beneath it, why it matters — then your turn.
01 · Lesson · why it matters
What Makes a Fossil Site a Treasure Trove
A Cambrian fossil site in China reveals creatures no one has seen before. How preservation conditions determine what we can learn from ancient life, and what 'rewriting the story' actually means.
6 min
Read the lesson
02 · Lab · your turn
Decay Filters the Record
When preservation depends on durability, fragile evidence decays faster than stable evidence—what survives teaches you about the filter's selectivity as much as the original population.
Rehearse the decision