Southwest Florida Shoreline Studies
Come study SW Florida's bays and beaches with us....
SW Florida Shoreline Studies
SW Shoreline News
This blog is dedicated to the environmental well-being of our Florida coastal habitat.
This blog is
dedicated to the environmental well-being of coastal habitat.
Thursday, January 6, 2011
Line grooves on shells
Polychaete worms leave snaking groove marks. The worms rasp away with their bristled bodies. They also etch with secreted acids.