North American Beaver (Castor canadensis) exits lodge through an underwater entrance
Upward underwater view of Yellow Pond Lilly (Nuphar polysepalum) leaves floating on the surface of a beaver pond-lake in the Copper River Delta of the Chugach National Forest, near Cordova, Alaska. Aquatic and aerial invetebrates, respestively, crustaceans and insects, can be seen as tiny specks silhouetted against the sky.
