I live in the PNW and I recently read in this book https://www.amazon.com/Razor-Clams-Treasure-Pacific-Northwes... that the dominate Phytoplankton that makes up razor clams diet has changed to three different species over the course of the last 100 years. Really makes you think about how little we know, and how long the process of distilling research into actual facts or summaries of how things work takes.