Better known as the elephant with tusks among everyone, the mammoths will be travelling the tundras of Skyrim. Given their awesomeness, they are often herded by Giants, whom take the time to carve symbols into their tusks.
Should you come upon these magnificent bastards and their giant masters, travelling the tundra together, you may get the urge to hurt them, you know, just to see what is up - Well, don't! The entire group will turn on you like the other students turn on Britta at Señor Chang's command! So you might want to think twice!
I do have a theory that you find mammoths wandering alone, since an example of the world ecology, depicts a pack of wolves working together as a team in order to take down one of them. Come to think of it, wouldn't it be quite strange if Giants had tamed all mammoths? Yes, yes it would.
