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.
Although the number of teeth varies within the different genera and species, they are usually undifferentiated and conical in shape, unlike the Porpoises whose teeth are more spade shaped. The beak length and width is highly variable between the different species and types of dolphins; some members have little or no differentiated beak while others demonstrate a prominent and distinct beak.