Probably the thanator because the thanator could claw into the hammerhead rhino's flesh and bite it with its deadly sharp teeth.
Rhino! an ape is much smaller, and has no defences
The Rhino would win. The Rhino can knock the Buffalo with his horn and Rhino are stronger than Buffalo.
bear
A rhino could flip a gorilla
In a fight? The rhino.
Any Rhino from the black rhino and up would win against any Bear. How ever a Grizzly bear,polar Bear,or Kodiak bear would stand a chance against a rhino of the smaller species such as the Javan Rhino or Sumatran Rhino.
A single rhinoceros doesn't have much of a chance against a herd of elephants. But one-on-one, it's likely that the rhino may win.
Possibly the 4 bears. The rhino could try knocking a bear to death, but the three other bears would run away and try working together to claw down the rhino.
A rhino is actually very dangerous compared with a grizzly bear when rhinos have strong horns and a long, thick body protecting itself. The grizzly bear can swat the rhino's head, but that will only infuriate the rhino since the rhino has tough head skin. Overall, the rhino will win by charging and knocking the bear down.
The rhino is slightly heavier but the hippo is longer. Hippo's teeth can measure 50 cm. rhino's hor is twice as big and rhinos are more aggressive. I'll say the rhino will win in a slight advantage.
The very large rhino-like animal is called a Hammerhead Titanothere. It is a forest herbivore with a bony, "hammerhead" skull. The Na'vi name is angtsìk.
The Thing.