If you are on a pvp server(pve works as well), and you're raiding someone, try to use the rhino's charge attack. If your opponent has a rex, and you hit it with a full charge meter, it will be an instakill.
This guy is like Dire bear and triceratops combined. Its speed accelerate just like the direbear and the ram like triceratops but more powerful. The faster you run, the stronger the ram attack. I love dire bears and I like triceratops so I love this creature so much.
If you charge at something at full speed, your rhino could probably one shot your target. I tried it on mine, and nearly one shotted a rex and literally obliterated a theri in 2 seconds. These things are super op with their charge, and have a decent amount of weight, and are pretty good at gathering. I would recommend taming these, as they should be a great use to you, and for people who have just tamed one, they cannot be carried by an argy. Only quetzal for mobile players. They gather the same amount of thatch as a theri does with wood.