PBS Eons has a new episode. This is about Cretaceous amber… what it is, how it forms, and what is found in it.

The Cretaceous Resinous Interval, a 54-million year period where amber was preserved in hundreds of locations across the world, was a gooey, gummy point in Earth’s history – and then amber suddenly disappeared for another 20 million years.

So, we have to ask: what exactly made this time period so very, very sticky?