Unusual scratches and impermanent patches on the skin of a Minke whale (Balaenoptera acutorostrata) known as Otter who was first identified in the St. Lawrence estuary, Canada, in 1996.

minke whale minke whale whales balaenoptera acutorostrata surfacing st lawrence estuary canada north america one animal lone single mammal cetacean water swimming rorqual scratches impermanent patches skin close up close ups close up close ups otter fins