One might be mounted

HORSE

This animal has been a loyal companion in both agriculture and battle throughout history, often associated with speed and strength.

The clue plays on the double meaning of "mounted." In one sense, it refers to riding a horse, since horses are animals people mount. The other meaning hints at a mounted object, like a trophy or a framed picture, but the answer leans on the more straightforward interpretation—an animal you literally get on top of. "Horse" fits perfectly as the answer.