The rhino's very small at birth,
But he attains a mighty girth.
While fierce of face, he's very calm;
He learned his manners from his mom,
Though when his temper's getting short,
His foes can land on life support.
His brain's quite dull; its synapses
Slow down when he gets in flapses.
But left alone, like you and me,
He's just as nice, as nice can be.