Original: The Bryde’s whale is a baleen whale (rorqual) 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.
Simplified: The Bryde's Whale (Balaenoptera edeni) is a baleen whale and is unique in having 3 longitudinal ridges on its head, forward of the blowhole, while all other rorquals have just one.