Bottlenose Dolphin Tursiops truncatus
Bottlenose dolphins are the most recognisable of all dolphin species. They are generally relatively large, chunky individuals with a dark grey back and paler belly. They have a short, stubby beak and that endearing mouth shape that makes them look as though they are smiling. Individuals can be recognised by distinct notches and markings on their dorsal fin, as unique as our fingerprints. Image: Natural Englan/Allan Drewitt (Flickr).