Tiger salamanders' markings are variable throughout their extensive range, but the most common marking resembles the vertically striped pattern of their mammalian namesake.
All are air-breathing, warm-blooded mammals that nurse their young. The difference between a dolphin and a porpoise has to do with their appearance: dolphins have longer snouts, bigger mouths, more curved dorsal fins, and longer, leaner bodies than porpoises. 1  Share on Facebook.  Tweet on Twitter.
Bottlenose dolphins â Genus Tursiops. The fluke is the name of the tail, and it doesnât contain any muscle, cartilage, or bone. Instead, it has very dense connective tissue. The dorsal fin is curved for the Bottlenose dolphin, but the overall shape of it can vary by individual.