Oh man it this would be fascinating but definitely a book of what could have been. If we had more visibility into details of why/how certain species didn't sur

Oh man it this would be fascinating but definitely a book of what could have been. If we had more visibility into details of why/how certain species didn't survive or how their competition "won" it would be a super interesting read. That said if it collected all species that didn't survive the book would >>> then the ones that have survived so clearly not viable to produce.