We tend to think in terms of fresh water and ocean water ecosystems, but there's a whole lot of life in between.
Estuaries, where salt and fresh water meet, are teeming with all kinds of creatures, animal and vegetable.
Dr. David Sutherland at the University of Oregon studies estuaries, both close to home and in the Arctic.
And he'll deliver a lecture on Friday (December 2) in Coos Bay about how the estuary at Coos Bay functions.
Dr. Sutherland visits with a preview.