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.
Dolphins and Hippos. The cetaceans (whales and dolphins) are some of the most beloved and respected animals in the world. Whales are the gentle giants of the sea, while dolphins are the fun-loving clowns who show up in a lot of female tattoos, despite the fact that they maybe also are serial killers. Now we all know that these regal creatures are mammals, so they're not as related to fish as you might otherwise think.