Martian Rhino

Another one for my terraformed Mars series. What better place to re-introduce the almost extinct white rhino than a planet with no poachers. Given enough time to evolve in a low gravity, cold environment I imagine the rhino becoming taller and fatter. Fat would be less of an issue in low gravity as the weight wouldn't matter so perhaps it would be a better insulator than hair. Also display features like the horn would likely grow as big as the lower gravity would allow. I'll keep playing with these ideas till I come up with a proper design style for my Martians!