Sawfish harvester
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The Sawfish harvester is a submersible robot produced by the Triton Lumber Corporation. It is designed for cutting down submerged trees and popping them to the surface, with large pincers and a chainsaw. Such trees are generally submerged when dams are built near existing forests, and their wood remains good underwater for long periods.
External link
- News report (http://www.newscientist.com/news/news.jsp?id=ns99994811) on the Sawfish