The ORGANIZATION@1 's whale is a baleen whale -LRB- rorqual -RRB- and is unique amongst these in that it has three longitudinal ridges on its head , from the tip of the snout back to the blowhole the other rorquals have just one ridge .

The ORGANIZATION@1 's Whale -LRB- Balaenoptera edeni -RRB- is a baleen whale and is unique in having NUMBER@1 longitudinal ridges on its head , forward of the blowhole , while all other rorquals have just one .
