930-88 - A heavily scarred dorsal fin of a Bottlenose Dolphin (Tursiops truncatus) tells of many encounters, some violent, with other dolphins in the Moray Firth, Scotland

988-23 - Minke whale (Balaenoptera acutorostrata). Damage to dorsal fins is often used for photo-identification purposes but even simply the shape of a 'clean' fin such as this may be identifiable. Hebrides, Scotland

969-325 - Leaping Spotted Dolphin - missing part of the dorsal fin. Azores, North Atlantic

969-124 - Semi-resident male Killer whale (Orcinus orca) off Scotland, known as John Coe recognised by the old wound in his dorsal fin. Hebrides, West coast of Scotland.

969-170 - Minke whale (Balaenoptera acutorostrata) with an old wound in its dorsal fin now used to recognise this individual by biologists every year in the Hebridean waters. West coast, Scotland