Episode 07 (supplemental): Octopuses from Space!

So, apparently, octopuses come from space. Or something. Emily and Chris chat about a ... curious ... paper that came out recently, which proposes an explanation for the Cambrian Explosion, the huge increase in diversity of life across the planet 500 million years ago. The suggested cause? Possibly viruses from space ... possibly octopus eggs in a meteor ... oh, who knows? It all seems a tad speculative but it's fun to discuss anyway.

This is a short supplemental episode while Chris takes a holiday and Emily curses him while she does some marking.